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Surplus
Kinds of Surplus Terms modified by Surplus Selected AbstractsPreparation and in vitro evaluation of 99mTc-labelled bovine lactadherin as a novel radioligand for apoptosis detectionJOURNAL OF LABELLED COMPOUNDS AND RADIOPHARMACEUTICALS, Issue 4 2007Lasse N. Waehrens Abstract Lactadherin is an opsonin, which binds with high affinity to phosphatidylserine exposed on the surface of apoptotic cells via its C1C2 domains. Phagocytosis of the apoptotic cells is then facilitated by an Arg-Gly-Asp (RGD)- mediated binding to macrophages surface integrins. The present report describes the synthesis of 99mTc-HYNIC,lactadherin with a radiochemical yield of 88±5% (n= 3) and a specific activity of 41±5 µCi/µg (n=3) when purified. Purified 99mTc-HYNIC,lactadherin was shown to be stable for at least 5 h when supplemented with 1.5 mg/ml fatty-acid-free BSA. The radiolabelled protein retained its phospholipid binding ability that was verified by its ability to bind to apoptotic HL60 leukaemia cells. The apoptotic cells demonstrated a RGD independent 3- to 4-fold excess binding of the radioactive component relative to control cells. Surplus of unlabelled lactadherin almost completely inhibited the binding of 99mTc-HYNIC,lactadherin. Collectively our data indicate that 99mTc-HYNIC,lactadherin is potentially useful as a new molecular binding tool for the identification of apoptotic cells. Copyright © 2007 John Wiley & Sons, Ltd. [source] Whole Plant Regulation of Sulfur Nutrition of Deciduous Trees-Influences of the EnvironmentPLANT BIOLOGY, Issue 3 2003C. Herschbach Abstract: The current view of sulfur nutrition is based on the source-to-sink relationship of carbohydrates. SO42- reduction is thought to occur mainly in leaves. Surplus reduced sulfur must be transported out of the leaves, loaded into the phloem and transported to other tissues, in particular tissues assumed to be sink organs. However, it has not been proved that tissues which are sinks for carbohydrates are also sink organs for reduced sulfur. It is evident that sinks must communicate with sources, and vice versa, to signal demand and to transport the surplus of reduced sulfur that is produced. The demand-driven control model of sulfur nutrition proposes that the tripeptide glutathione is the signal which regulates S nutrition of the whole plant at the level of SO42- uptake. Acclimatization to environmental changes has been shown to result in several changes in S nutrition of deciduous trees: (i) Drought stress diminished SO42- transport into the xylem, although the GSH content in lateral roots remained unaffected, possibly due to an overall reduction in water status. (ii) Flooding decreased APS reductase activity in the anoxic roots. This may be due to enhanced GSH transport to the roots, but it is more likely to be the result of a change in metabolism leading to diminished energy gain in the roots. (iii) Mycorrhization enhanced the GSH content in the phloem, while SO42- uptake was not affected. This clearly goes against the demand-driven control model. (iv) Under both short- and long-term exposure to elevated pCO2, the APS reductase activity in leaves and lateral roots did not correlate with the GSH contents therein. Therefore, it must be assumed that, under these conditions, regulation of S nutrition goes beyond the demand-driven control model, and occurs within the network of other nutrient metabolism. (v) Atmospheric S in the form of H2S enhanced the reduced sulfur content of the phloem and lateral roots. Under these conditions, the SO42- loaded into the xylem decreased. It would appear that the demand-driven control model of sulfur nutrition is not always valid in the case of deciduous trees. [source] China's Exchange Rate Policy, Its Current Account Surplus and the Global Imbalances,THE ECONOMIC JOURNAL, Issue 541 2009W. Max Corden This article is stimulated by current criticisms of Chinese exchange rate policy. The concern is really about China's current account surplus. The article discusses the factors that determine the surplus, and the reasons why the surplus increased sharply from 2005. The international implications of China's surplus and growth are discussed, and how it has affected the world real interest rate, and through that the US current account deficit. The surplus has had various international relative price effects, which have produced both gainers and losers. Finally, the surplus played only a small part in determining the world credit crisis. [source] Solution to the Dilemma of the Migrant Labor Shortage and the Rural Labor Surplus in ChinaCHINA AND WORLD ECONOMY, Issue 4 2009Guifu Chen C25; J60; N55 Abstract Since 2003, China's labor market has been facing two coexisting crises: a rural labor surplus and a severe shortage of migrant labor. Using data from the 2000 China Health and Nutrition Survey questionnaire, which covers 288 villages in 36 counties, this paper attempts to find a solution to this dilemma. Specifically, a multinomial logit model, a Mincer-type model and a probit model are applied to examine the effect of educational level on the employment choices for rural laborers, and on the wages and the employment status of migrants. Based on the results of our analysis, we propose the implementation of policy aimed at increasing the educational level of rural dwellers, in conjunction with other policies to eliminate all artificial barriers, to facilitate the migration of rural laborers. [source] ,Close-to-Balance or in Surplus': A Policy-Maker's Guide to the Implementation of the Stability and Growth PactJCMS: JOURNAL OF COMMON MARKET STUDIES, Issue 4 2000Michael J. Artis Under the Stability and Growth Pact, countries are committed to achieve medium-term budget positions of ,close-to-balance or in surplus'. The rationale for this commitment is that such budgetary positions would allow for the full working of the built-in stabilizers without triggering the sanctions procedures of the Pact. This article sets out to show how quantifications of the medium-term (structural) requirement can accommodate the desired aim and suggests how fiscal measurement and forecasting errors as well as the budgetary effects of ageing may be allowed for. All in all, broadly balanced budgets in the medium term appear to be ,roughly right' for most euro-zone countries. Of course, as the cyclical behaviour of the euro-zone economy adapts to the new EMU environment, the medium-term targets will need to be addressed again. [source] Smoothing Mechanisms in Defined Benefit Pension Accounting Standards: A Simulation Study,ACCOUNTING PERSPECTIVES, Issue 2 2009Cameron Morrill ABSTRACT The accounting for defined benefit (DB) pension plans is complex and varies significantly across jurisdictions despite recent international convergence efforts. Pension costs are significant, and many worry that unfavorable accounting treatment could lead companies to terminate DB plans, a result that would have important social implications. A key difference in accounting standards relates to whether and how the effects of fluctuations in market and demographic variables on reported pension cost are "smoothed". Critics argue that smoothing mechanisms lead to incomprehensible accounting information and induce managers to make dysfunctional decisions. Furthermore, the effectiveness of these mechanisms may vary. We use simulated data to test the volatility, representational faithfulness, and predictive ability of pension accounting numbers under Canadian, British, and international standards (IFRS). We find that smoothed pension expense is less volatile, more predictive of future expense, and more closely associated with contemporaneous funding than is "unsmoothed" pension expense. The corridor method and market-related value approaches allowed under Canadian GAAP have virtually no smoothing effect incremental to the amortization of actuarial gains and losses. The pension accrual or deferred asset is highly correlated with the pension plan deficit/surplus. Our findings complement existing, primarily archival, pension accounting research and could provide guidance to standard-setters. [source] IS TIGHTER FISCAL POLICY EXPANSIONARY UNDER FISCAL DOMINANCE?: HYPERCROWDING OUT IN LATIN AMERICACONTEMPORARY ECONOMIC POLICY, Issue 2 2010WILLIAM C. GRUBEN Hypercrowding out occurs when fiscally dominated governments' domestic credit demands are so intrusive to a nation's financial system that a move toward fiscal surplus lowers interest rates and increases growth. We sample nine Latin American countries to test for these relationships. The impulse-response results of vector error correction models, six nations test positive for these two connections, suggesting market concern despite recent efforts toward fiscal balance. (JEL E430, E620, O230, O540) [source] Economic sustainability and the cost of poor qualityCORPORATE SOCIAL RESPONSIBILITY AND ENVIRONMENTAL MANAGEMENT, Issue 4 2005Raine Isaksson Abstract Sustainable development (SD) on the organizational level is often measured using the triple bottom line, which divides performance reporting into the economic, environmental and social dimensions. Since total quality management (TQM) over the years has proven to contribute to good economic performance, it is interesting to review synergies of the two concepts TQM and SD. Indicators commonly used in the triple bottom line are compared with quality related measurements and a synthesis is proposed. Focus is on the economic dimension and indicators in the form of cost of poor quality (CPQ). The CPQ as a sustainability indicator is discussed and exemplified. The results indicate that existing economic sustainability performance measurements based on distribution of surplus should be complemented with indicators for internal losses. A sound profit is in most cases necessary, but it is not the sole condition for economic sustainability. Copyright © 2005 John Wiley & Sons, Ltd and ERP Environment. [source] The lateral intercellular space as osmotic coupling compartment in isotonic transportACTA PHYSIOLOGICA, Issue 1 2009E. H. Larsen Abstract Solute-coupled water transport and isotonic transport are basic functions of low- and high-resistance epithelia. These functions are studied with the epithelium bathed on the two sides with physiological saline of similar composition. Hence, at transepithelial equilibrium water enters the epithelial cells from both sides, and with the reflection coefficient of tight junction being larger than that of the interspace basement membrane, all of the water leaves the epithelium through the interspace basement membrane. The common design of transporting epithelia leads to the theory that an osmotic coupling of water absorption to ion flow is energized by lateral Na+/K+ pumps. We show that the theory accounts quantitatively for steady- and time dependent states of solute-coupled fluid uptake by toad skin epithelium. Our experimental results exclude definitively three alternative theories of epithelial solute,water coupling: stoichiometric coupling at the molecular level by transport proteins like SGLT1, electro-osmosis and a ,junctional fluid transfer mechanism'. Convection-diffusion out of the lateral space constitutes the fundamental problem of isotonic transport by making the emerging fluid hypertonic relative to the fluid in the lateral intercellular space. In the Na+ recirculation theory the ,surplus of solutes' is returned to the lateral space via the cells energized by the lateral Na+/K+ pumps. We show that this theory accounts quantitatively for isotonic and hypotonic transport at transepithelial osmotic equilibrium as observed in toad skin epithelium in vitro. Our conclusions are further developed for discussing their application to solute,solvent coupling in other vertebrate epithelia such as small intestine, proximal tubule of glomerular kidney and gallbladder. Evidence is discussed that the Na+ recirculation theory is not irreconcilable with the wide range of metabolic cost of Na+ transport observed in fluid-transporting epithelia. [source] Characteristics and dynamics of multiple intertidal bars, north Lincolnshire, EnglandEARTH SURFACE PROCESSES AND LANDFORMS, Issue 4 2006Selma van Houwelingen Abstract Multiple intertidal bars and troughs, often referred to as ,ridges and runnels', are significant features on many macrotidal sandy beaches. Along the coastline of England and Wales, they are particularly prevalent in the vicinity of estuaries, where the nearshore gradient is gentle and a large surplus of sediment is generally present. This paper examines the dynamics of such bar systems along the north Lincolnshire coast. A digital elevation model of the intertidal morphology obtained using LIDAR demonstrates that three to five intertidal bars are consistently present with a spacing of approximately 100 m. The largest and most pronounced bars (height = 0·5,0·8 m) are found around mean sea level, whereas the least developed bars (height = 0·2,0·5 m) occur in the lower intertidal zone. Annual aerial photographs of the intertidal bar morphology were inspected to try to track individual bars from year to year to derive bar migration rates; however, there is little resemblance between concurrent photographs, and ,resetting' of the intertidal profile occurs on an annual basis. Three-dimensional beach surveys were conducted monthly at three locations along the north Lincolnshire coast over a one-year period. The intertidal bar morphology responds strongly to the seasonal variation in the forcing conditions, and bars are least numerous and flattest during the more energetic winter months. Morphological changes over the monthly time scale are strongly affected by longshore sediment transport processes and the intertidal bar morphology can migrate along the beach at rates of up to 30 m per month. The behaviour of intertidal bars is complex and varies over a range of spatial and temporal scales in response to a combination of forcing factors (e.g. incident wave energy, different types of wave processes, longshore and cross-shore sediment transport), relaxation time and morphodynamic feedback. Copyright © 2005 John Wiley & Sons, Ltd. [source] Dynamics of an introduced population of mouflon Ovis aries on the sub-Antarctic archipelago of KerguelenECOGRAPHY, Issue 3 2010Renaud Kaeuffer A commonly reported pattern in large herbivores is their propensity to irrupt and crash when colonizing new areas. However, the relative role of density-dependence, climate, and cohort effects on demographic rates in accounting for the irruptive dynamics of large herbivores remains unclear. Using a 37-yr time series of abundance in a mouflon Ovis aries population located on Haute Island, a sub-Antarctic island of Kerguelen, 1) we investigated if irruptive dynamics occurred and 2) we quantified the relative effects of density and climate on mouflon population dynamics. Being released in a new environment, we expected mouflon to show rapid growth and marked over-compensation. In support of this prediction, we found a two-phase dynamics, the first phase being characterised by an irruptive pattern best described by the , -Caughley model. Parameter estimates were rm=0.29±0.005(maximum growth rate), K=473±45 (carrying capacity) and S=2903±396 (surplus) mouflon. With a ,=3.18±0.69 our model also supported the hypothesis that density dependence is strongest at high density in large herbivores. The second phase was characterised by an unstable dynamics where growth rate was negatively affected by population abundance and winter precipitation. Climate, however, did not trigger population crashes and our model suggested that lagged density-dependence and over-grazing were the probable causes of mouflon irruptive dynamics. We compare our results with those of Soay sheep and discuss the possibility of a reversible alteration of the island carrying capacity after the initial over-grazing period. [source] What do dung beetles eat?ECOLOGICAL ENTOMOLOGY, Issue 6 2007PETER HOLTER Abstract 1.,Most adult coprophagous beetles feed on fresh dung of mammalian herbivores, confining ingestion to small particles with measured maximum diameters from 2,5 to 130 ,m, according to body size and kind of beetle. This study explores benefits and costs of selective feeding in a ,typical' dung beetle with a maximum diameter of ingested particles (MDIP) of 20 ,m. 2.,Examined dung types (from Danish domestic sheep, cattle and horse, and African wild buffalo, white rhino and elephant) contained 76,89% water. Costs of a 20 ,m MDIP were often low, since 69,87% of the total nitrogen in bulk dung other than that of elephant and rhino (40,58%) was available to selective feeders. 3.,Nitrogen concentrations were high , and C/N ratios low , in most types of bulk dung compared with the average food of terrestrial detritivores or herbivores. Exceptions were elephant and rhino dung with low nitrogen concentrations and high C/N ratios. 4.,Estimated C/N ratios of 13,39 in bulk dung (sheep,elephant) were decreased by selective feeding to 7.3,12.6 in the ingested material. In assimilated food, ratios are probably only 5,7, as most assimilable nitrogen and carbon may be of microbial origin. If so, the assimilable food contains a surplus of nitrogen relative to carbon. 5.,The primary advantage of selective feeding, particularly in dung with a high C/N ratio, may be to concentrate assimilable carbon in the ingested food. Effects of changing the MDIP within 20,106 ,m are modest, especially in dung with a low C/N ratio. [source] A Dynamic Theory of HoldupECONOMETRICA, Issue 4 2004Yeon-Koo Che The holdup problem arises when parties negotiate to divide the surplus generated by their relationship specific investments. We study this problem in a dynamic model of bargaining and investment which, unlike the stylized static model, allows the parties to continue to invest until they agree on the terms of trade. The investment dynamics overturns the conventional wisdom dramatically. First, the holdup problem need not entail underinvestment when the parties are sufficiently patient. Second, inefficiencies can arise unambiguously in some cases, but they are not caused by the sharing of surplus per se but rather by a failure of an individual rationality constraint. [source] Unobservable Investment and the Hold-Up ProblemECONOMETRICA, Issue 2 2001Faruk Gul We study a two-person bargaining problem in which the buyer may invest and increase his valuation of the object before bargaining. We show that if all offers are made by the seller and the time between offers is small, then the buyer invests efficiently and the seller extracts all of the surplus. Hence, bargaining with frequently repeated offers remedies the hold-up problem even when the agent who makes the relation-specific investment has no bargaining power and contracting is not possible. We consider alternative formulations with uncertain gains from trade or two-sided investment. [source] Long-Term Debt and Optimal Policy in the Fiscal Theory of the Price LevelECONOMETRICA, Issue 1 2001John H. Cochrane The fiscal theory says that the price level is determined by the ratio of nominal debt to the present value of real primary surpluses. I analyze long-term debt and optimal policy in the fiscal theory. I find that the maturity structure of the debt matters. For example, it determines whether news of future deficits implies current inflation or future inflation. When long-term debt is present, the government can trade current inflation for future inflation by debt operations; this tradeoff is not present if the government rolls over short-term debt. The maturity structure of outstanding debt acts as a "budget constraint" determining which periods' price levels the government can affect by debt variation alone. In addition, debt policy,the expected pattern of future state-contingent debt sales, repurchases and redemptions,matters crucially for the effects of a debt operation. I solve for optimal debt policies to minimize the variance of inflation. I find cases in which long-term debt helps to stabilize inflation. I also find that the optimal policy produces time series that are similar to U.S. surplus and debt time series. To understand the data, I must assume that debt policy offsets the inflationary impact of cyclical surplus shocks, rather than causing price level disturbances by policy-induced shocks. Shifting the objective from price level variance to inflation variance, the optimal policy produces much less volatile inflation at the cost of a unit root in the price level; this is consistent with the stabilization of U.S. inflation after the gold standard was abandoned. [source] Recovering from Crisis: The Case of Thailand's Spatial FixECONOMIC GEOGRAPHY, Issue 4 2007Jim Glassman Abstract: Although the Asian economic crisis has been the subject of numerous analyses, the varied and uneven processes by which different Asian countries have recovered from the crisis have received comparatively less attention. This article focuses on the process of recovery in Thailand. While the crisis and recovery both have international dimensions that go beyond individual nation-states, the case of Thailand can be used to analyze some of the forces that are at work in both the national and international contexts. Thailand's process of recovery can be analyzed by noting tensions and overlaps among different forms of spatial fix,those involving investment in Bangkok' built environment, those involving the geographic decentralization of investment to lower-cost production sites, and those involving the effort to expand exports. Each of these spatial fixes involves different accumulation strategies and, therefore, political coalitions. This situation suggests the centrality of social struggles over the appropriation of surplus to both crisis and recovery. [source] Natural Resources and Regional Development: An Assessment of Dependency and Comparative Advantage ParadigmsECONOMIC GEOGRAPHY, Issue 1 2003Thomas Gunton Abstract: The role of natural resources in regional development is the subject of a debate between dependency theorists, who argue that natural resources impede development, and comparative-advantage theorists, who argue that resources can expedite development. This debate is assessed by a case study analysis of the impact of resource development on a regional economy. The case study uses a model to estimate the comparative advantage of the resource sector. The results show that natural resources have the potential to provide a significant comparative advantage relative to other economic sectors by virtue of generating resource rent, which is a surplus above normal returns to other factors of production. The case study also shows that there are considerable risks in resource-led growth, including the propensity to dissipate rent and increase community instability by building surplus capacity. These risks are amenable to mitigation because they are largely the result of poor management of resource development. The case study demonstrates that the most productive analytical approach for understanding the role of natural resources in the development process is a synthetic approach, which combines the insights of the dependency and comparative-advantage paradigms into a unified framework. It also demonstrates that the concept of resource rent, which has frequently been ignored in development theory, must be reintegrated into the unified framework to improve the understanding of the role of natural resources in the regional development process. [source] Resources, techniques, and strategies south of the Sahara: revising the factor endowments perspective on African economic development, 1500,20001ECONOMIC HISTORY REVIEW, Issue 3 2008GARETH AUSTIN This article seeks to revise and re-apply the factor endowments perspective on African history. The propositions that sub-Saharan Africa was characterized historically by land abundance and labour scarcity, and that the natural environment posed severe constraints on the exploitation of the land surplus, are broadly upheld. Important alterations are suggested, however, centred on the seasonality of labour supply, Ruf's concept of ,forest rent', and, for precolonial economies, the role of fixed capital. This revised endowments framework is then applied in order to explore the long-term dynamics of economic development in Africa, focusing on how the economic strategies of producers and political authorities created specific paths of change which shifted the production possibility frontiers of the economies concerned, and ultimately altered the very factor ratios to which the strategies had been responses. [source] GAUGING ECONOMIC PERFORMANCE UNDER CHANGING TERMS OF TRADE: REAL GROSS DOMESTIC INCOME OR REAL GROSS DOMESTIC PRODUCT?ECONOMIC PAPERS: A JOURNAL OF APPLIED ECONOMICS AND POLICY, Issue 4 2008Dr WILLIAM COLEMAN The paper presents a simple theoretical case for the superiority of the notion of Real Gross Domestic Income to Gross Domestic Product. It is shown that, in a multi-period version of the familiar neoclassical model of a small, open economy, a temporary improvement in its terms of trade will increase welfare and RGDI, and produce a trade surplus in current prices; but will decrease real GDP, on account of it creating a trade deficit at constant prices. [source] Can Growth Ease Class Conflict?ECONOMICS & POLITICS, Issue 1 2002E. Somanathan This paper proposes a theory that links labor supply to wage growth and economic growth, and the conflict of interest between capital and labor. During the early stages of industrialization of a country, "surplus" labor drawn from the traditional sector of the economy is available to the modern capitalist sector at a constant or only slowly rising wage. As industrialization proceeds, this labor surplus vanishes, leading to wages rising in tandem with the growth of output. As long as there is surplus labor, workers in the modern capitalist sector, who are organized, have little interest in growth as it does not raise wages. The effect of growth is external to them, simply drawing more workers into the capitalist sector and enabling the entrants to receive rents. So capitalist-sector workers would like to redistribute income regardless of the adverse effect on growth. Once the economy grows enough for the subsistence sector to vanish, further growth raises wages. Hence, this change in the structure of the economy leads to a reduction in the intensity of the labor,capital conflict. The dual economy model implies that growth rates rise over time and fall after the exhaustion of the labor surplus which is consistent with the stylized fact of economic growth. [source] CAP Reform in the Dairy Sector: Remove Export Subsidies and Retain Milk QuotaEUROCHOICES, Issue 2 2004Zohra Bouamra-Mechemache Summary CAP Reform in the Dairy Sector: Remove Export Subsidies and Retain Milk Quota The reforms of the Common Agricultural Policy of June 2003 introduced major policy changes, In the dairy sector the aim is to decrease price distortions between the EU and world dairy markets through successive reductions in milk intervention prices. However, the milk quota system is still in place and successive increases in milk quotas are planned. The question is whether these dairy reforms are going in the right direction given the three main characteristics of the EU dairy sector. First the price inelasticity of both milk supply (due to quota) and domestic demand means that price distortion mainly affects the distribution of economic surplus between consumers and producers but does not generate significant net losses in economic welfare. Second, the ,large country' position of the EU on the world market means that the EU should remove all export subsidies, which will reduce EU exports and increase world prices. Third, the projected increase in EU aggregate demand for milk favours a reduction in all subsidies. The CAP is going in the right direction in the dairy sector. But to reduce price distortions all subsidies should be removed as soon as possible and the milk production quota should be retained. La réforme de la PAC laitiére: supprimer les subventions aux exportations et conserver les quotas La réforme de la PAC en juin 2003 est un changement majeur. En ce qui concerne le secteur laitier, l'idée consiste à diminuer les distorsions entre les prix européens et ceux du marché mondial par une série de réductions progressives du prix d'intervention. En même temps, le système des quotas reste en place et des accroissements progressifs sont envisageés pour les droits à produire. La question. est alors de savoir si une telle politique est bien orientée, compte tenu des trois caractéristiques principales du secteur laitier européen. En premier lieu, la faible élasticité-prix aussi bien de l'offre (à cause des quotas) que de la demande, implique que les distorsions, si elies affectent la répartition des bénéfices entre producteurs et consommateurs, ne génèrent pas de très grandes pertes sociales au niveau du bien-être global. Ensuite, l'importance de l'Union européenne sur les marchés mondiaux implique que l'UE doive réduire ses subventions à l'exportation, ce qui diminuera le volume des exportations et en fera remonter le prix, Enfin, l'accroissement prévisible de la demande globale européenne en produits laitiers devrait conduire G une réduction des subventions de toute sorte. La PAC est done sur la bonne voie en matière laitière. Mais pour réduire les distorsions, il faut le plus vite possible supprimer les subventions et conserver les quotas laitiers. Reform der GAP im Milchsektor: Abschaffung der Exportsubventionen und Beibehaltung der Milchquoten Die Reform der Gemeinsamen Agrarpolitik vom Juni 2003 führt zu erheblichen Politikänderungen. Im Milchsektor ist das Ziel, die Preisverzerrungen zwischen der EU und den Weltmärkten für Milchprodukte durch eine sukzessive Reduzierung der Milchinterventionspreise zu verringern. Das Milchquotensystem bleibt jedoch weiter bestehen und sukzessive Erhöhungen der Milchquoten sind geplant. Es ergibt sich die Frage, ob die Reform bei den vorhandenen drei Charakteristika im EU Milchsektor in die richtige Richtung geht. Erstens bedeuten das gegebene preisunelastische Angebot von Milch (wegen der Quotierung) und die Nachfrage im Inland, dass die Preisverzerrung sich vomehmlich auf die Verteilung der ökonomischen Rente zwischen Konsumenten und Produzenten auswirkt, nicht aber zu bedeutenden Wohlfahrtsverlusten führt. Zweitens fuhrt die Abschaffung aller Exporterstattungen für Milch und Milchprodukte dazu, dass die EU Exporte sinken und damit wegen der EU als relative großes Land die Weltmarktpreise für Milch steigen werden. Drittens begünstigt die vorausgesagte Zunahme in der aggregierten Milchnachfrage in der EU eine Reduzierung aller Subventionen. Die GAP entwickelt sich im Milchsektor in die richtige Richtung. Es sollten aber alle Subventionen so schnell wie möglich abgebaut und die Milchquote sollte aufrechterhalten werden, um Preisverzerrungen zu reduzieren. [source] Do neurons have a reserve of sodium channels for the generation of action potentials?EUROPEAN JOURNAL OF NEUROSCIENCE, Issue 1 2000A study on acutely isolated CA1 neurons from the guinea-pig hippocampus Abstract The density of voltage-gated sodium channels is high in several regions of the neuronal membrane. It is unclear if this density of channels represents a reserve for the neuron, or if it fulfils a special role in action potential firing. This problem was addressed by studying sodium currents and action potentials in acutely isolated hippocampal CA1 neurons whose number of active sodium channels was acutely changed by applying the sodium channel blocker tetrodotoxin (TTX) at different concentrations. The results show that more than a third of the sodium channels can fail without affecting the single action potential. Thus, the neurons have a remarkable surplus of sodium channels. The surplus, however, is necessary for repetitive action potential firing, as every decrease in the fraction of sodium channels reduces the maximal frequency of action potentials that can be generated by the neuron. [source] Political characteristics, institutional procedures and fiscal performance: Panel data analyses of Norwegian local governments, 1991,1998EUROPEAN JOURNAL OF POLITICAL RESEARCH, Issue 1 2005TERJE P. HAGEN The political leadership is assumed to have an important role in keeping fiscal control and resisting the high-demanders' pressure for increased spending. Three factors of relevance for their success are investigated: political characteristics (political colour and political strength, the strength of relevant interest groups) and two institutional characteristics, committee structure and budgeting procedures. The analyses are based on panel data from up to 434 Norwegian municipalities in the period from 1991 to 1998. The results support the hypothesis that strong political leadership improves fiscal performance. The effect of interest groups is to a high degree community-specific. However, an increased share of elderly reduces fiscal surplus. Differences in budgetary procedures do not seem to affect fiscal performance. A strong committee structure seems, on the other hand, to result in better fiscal performance than a weaker one. [source] Nitrate leaching from cut grassland as affected by the substitution of slurry with nitrogen mineral fertilizer on two soil typesGRASS & FORAGE SCIENCE, Issue 1 2010J. J. Schröder Abstract A field experiment was conducted to find out whether there is any difference in risk of N leaching to groundwater when cattle slurry and/or mineral fertilizer-N was applied to cut grassland. The experiment was carried out over two consecutive years on two sites (one with a relatively wet sandy soil and one with a relatively dry sandy soil). Treatments were mineral fertilizer-N at annual rates of 0,510 kg N ha,1 year,1 and combinations of sod-injected cattle slurry (85, 170, 250 and 335 kg N ha,1 year,1) and mineral fertilizer-N (289, 238, 190 and 139 kg N ha,1 year,1). Yield responses indicated that in the short run, 0·44,0·88 (average 0·60) of the slurry-N was as available as mineral fertilizer-N. The total N input from mineral fertilizer and slurry was a worse predictor of nitrate leaching ( 0·11) than the N surplus (i.e. the difference between total N input and harvested N) ( 0·60). The effective N surplus, based on the difference between the summed inputs of the plant-available N and harvested N, proved to be the best indicator of leaching ( 0·86). Annual N application rates of up to 340 kg plant-available N ha,1 complied with the target nitrate concentration in groundwater of 11·3 mg N L,1 set by the European Union in both years on the wet sandy soil, whereas on the dry sandy soil none of the treatments did. [source] A Method for Predicting Chloride Concentrations in Leachate at Natural Attenuation Landfills in the Precambrian Shield Regions of Ontario, CanadaGROUND WATER MONITORING & REMEDIATION, Issue 3 2000Jim Gehrels Natural attenuation landfill sites continue to be the preferred method of domestic waste disposal in the Precambrian Shield regions of Ontario due to economic factors. The main challenge in siting these landfills is ensuring that there will be no adverse impact on off-site water resources. Impact risk assessments are generally based on estimated volumes and strengths of chloride in the leachate. While volumes can be estimated using simple water balances, peak chloride concentration predictions are based on judgment and are quite variable. Since design chloride strengths dictate the size of the required attenuation zone, overestimating concentrations will typically make it impossible to find a suitable site, while underestimating concentrations increases the potential for adverse off-site impacts occurring. Hydrogeological data from active and closed landfills in the Precambrian Shield region were collected to help develop a reliable method of predicting peak chloride concentrations in leachate. This study focused on 21 sites located on relatively permeable sandy soils since landfills underlain by low permeability clayey soils retain leachate similar to lined facilities. Linear regression analyses were conducted to determine if source chloride concentrations at the "sand" sites are significantly influenced by waste thickness, fill area, waste volume, waste deposition rate, hydraulic conductivity, upgradient flow length, depth to the water table, and moisture surplus. A strong relationship (R = 0.957) was found to exist between source chloride concentrations and waste volume. This empirical volume versus chloride regression equation can be used as the basis for establishing design chloride concentrations at new natural attenuation landfills developed over sandy soils in the Precambrian Shield regions of Ontario. An alternative risk assessment approach is required for sites developed over clay soils. [source] Cost,benefit analysis involving addictive goods: contingent valuation to estimate willingness-to-pay for smoking cessationHEALTH ECONOMICS, Issue 2 2009David L. Weimer Abstract The valuation of changes in consumption of addictive goods resulting from policy interventions presents a challenge for cost,benefit analysts. Consumer surplus losses from reduced consumption of addictive goods that are measured relative to market demand schedules overestimate the social cost of cessation interventions. This article seeks to show that consumer surplus losses measured using a non-addicted demand schedule provide a better assessment of social cost. Specifically, (1) it develops an addiction model that permits an estimate of the smoker's compensating variation for the elimination of addiction; (2) it employs a contingent valuation survey of current smokers to estimate their willingness-to-pay (WTP) for a treatment that would eliminate addiction; (3) it uses the estimate of WTP from the survey to calculate the fraction of consumer surplus that should be viewed as consumer value; and (4) it provides an estimate of this fraction. The exercise suggests that, as a tentative first and rough rule-of-thumb, only about 75% of the loss of the conventionally measured consumer surplus should be counted as social cost for policies that reduce the consumption of cigarettes. Additional research to estimate this important rule-of-thumb is desirable to address the various caveats relevant to this study. Copyright © 2008 John Wiley & Sons, Ltd. [source] Affording Universal Higher EducationHIGHER EDUCATION QUARTERLY, Issue 2 2002Lauchlan Chipman Can we achieve universal or near,universal higher education within the next two decades, without a massive increase in government investment in higher education? It is argued that the answer is yes, with greater involvement of the private, for,profit sector, or by encouraging existing not,for,profit universities to open for,profit campuses, at which the emphasis is on high,quality and convenient undergraduate teaching, with little or no research, and a concentration on high,demand, low,cost disciplines. This position requires us to recognise that research engagement is not conceptually essential for an institution to count as a university, understood both historically and through international comparison. Rather, this assumption operates as a significant entry barrier to new, low,cost entrants. This paper provides a case study of the ways in which Central Queensland University has extended its operations by developing surplus,generating campuses through joint,venture operations with the private sector, and argues such an operation could just as easily be developed as a free,standing, for,profit mode of university degree delivery , provided that present, artificial, protectionist limitations on the use of the name ,university' are removed. Degree programmes of such institutions should, of course, be subject to the same quality assurance standards as apply to existing universities. [source] Supporting long-term workforce planning with a dynamic aging chain model: A case study from the service industryHUMAN RESOURCE MANAGEMENT, Issue 5 2010Andreas Größler Abstract This study demonstrates how a dynamic, aging chain model can support strategic decisions in workforce planning. More specifically, we used a system dynamics model (a modeling and simulation technique originating from supply chain management) to improve the recruiting and training process in a large German service provider in the wider field of logistics. The key findings are that the aging chain of service operators within the company is affected by a variety of delays in, for example, recruiting, training, and promoting employees, and that the structure of the planning process generates cyclic phases of workforce surplus and shortage. The discussion is based on an in-depth case study conducted in the service industry in 2008. Implications are that planning processes must be fine-tuned to account for delays in the aging chain. The dynamic model provides a tool to gain insight into the problem and to improve the actual human resource planning process. The value of the paper lies in the idea of applying a well-known and quantitative method from supply chain management to a human resource management issue. © 2010 Wiley Periodicals, Inc. [source] Equilibrium Partner Switching in a Bargaining Model With Asymmetric InformationINTERNATIONAL ECONOMIC REVIEW, Issue 4 2000Gianni De Fraja We study a model in which the seller of an indivisible object faces two potential buyers and makes an offer to either of them in each period. We find that the seller's ability to extract surplus from them depends crucially on the value of the cost of switching from one buyer to the next. If the seller is pessimistic about the buyers' valuations and there is a switching cost, however small, then the market is a natural bilateral monopoly; the second buyer is never called on. If the switching cost is zero, or if the seller is optimistic, then switching, and possibly recall of the original buyer, may occur. [source] Two-Sided Search, Marriages, and MatchmakersINTERNATIONAL ECONOMIC REVIEW, Issue 1 2000Francis Bloch This article analyzes the provision of matching services in a model of two-sided search. Agents belong to two heterogeneous populations and are distributed on [0, 1]. Their utility is equal to the index of their mate. In a search equilibrium agents form subintervals and are only matched to agents inside their class. Marriage brokers match agents according to a centralized procedure. If the matchmaker charges a uniform participation fee, only agents of higher quality participate in the centralized procedure. If the matchmaker charges a commission on the matching surplus, only agents of lower quality go to the intermediary. [source] | ||||||||||||||||||||||||||||||||||||||||||||||