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Strong Empirical Support (strong + empirical_support)
Selected AbstractsMigration and the Tiebout-Tullock Hypothesis RevisitedAMERICAN JOURNAL OF ECONOMICS AND SOCIOLOGY, Issue 2 2009Richard J. Cebula This study investigates, using state-level data for the period 2000,2005, the Tiebout hypothesis (as extended by Tullock) of "voting with one's feet." This analysis differs from previous related studies not only in its adoption of more current migration and other data but also in other ways. First, unlike most earlier related studies, it includes a separate measure of the overall cost of living; second, it examines per pupil (rather than per capita) outlays on public primary and secondary education; and third, in addition to property taxes, it also focuses on per capita state income tax burdens. Inclusion of the last of these variables in the analysis is based on studies that have found the existence of a state income tax to have influenced migration patterns and other studies that have found higher state income tax levels to have resulted in reduced per capita income growth over time. Moreover, including both property tax burdens and income tax burdens broadens the scope of the hypothesis. Strong empirical support for the Tiebout-Tullock hypothesis (as interpreted here) is obtained for the study period. [source] Minority influence: the role of ambivalence toward the sourceEUROPEAN JOURNAL OF SOCIAL PSYCHOLOGY, Issue 4 2008Angelica Mucchi-Faina According to literature on social influence, a minority source may indirectly influence group members by fostering ambivalent reactions. Two studies were carried out in order to provide empirical support for this theoretical assumption. In Study 1 participants (n,=,133), were exposed to a counter-attitudinal minority message and ambivalence was manipulated by facilitating the accessibility of either ambivalent (positive and negative) or univalent (positive or negative) thoughts toward the source. We predicted and found more indirect influence in ambivalent condition than in univalent conditions. No effect of ambivalence on direct influence was found. In Study 2 (n,=,127), ambivalence was measured and two possible antecedents of ambivalence, consistency of the minority and personal relevance of the topic for participants, were taken into account. Findings suggest that ambivalence mediates the effects of the two factors on indirect influence. In sum, these studies provide evidence of the importance of ambivalence in minority influence context, an early assumption that was still lacking in strong empirical support. Copyright © 2007 John Wiley & Sons, Ltd. [source] Machiavelli's Legacy: Domestic Politics and International ConflictINTERNATIONAL STUDIES QUARTERLY, Issue 2 2005David Sobek Research examining the effect of regime type on conflict has focused on the democracy/autocracy continuum expounded in the political philosophies of liberal thinkers such as Kant and Schumpeter. While this concentration has yielded impressive results (democratic peace), it seems plausible that other conceptions of regime type may yield similar success. This paper examines the philosophy of Machiavelli and develops a measure of his "imperial regimes." These states, which can either be democratic or autocratic, should exhibit an increased propensity to initiate international conflict. Testing this contention in Renaissance Italy (1250,1494) and the modern international system (1920,1992), this paper finds strong empirical support. Machiavelli's views illuminate key differences between democracies and autocracies that have been previously overlooked. Thus, it deepens rather than replaces our conception of how domestic institutions affect international conflict. [source] Non-independence of demographic parameters: positive density-dependent fecundity in eaglesJOURNAL OF APPLIED ECOLOGY, Issue 5 2008Miguel Ferrer Summary 1Using information on the Doñana population of Spanish imperial eagles Aquila adalberti from 1959 to 2004, we present strong empirical support to theoretical models on the regulation of population trajectories by the relationships between breeder mortality and floater availability. 2During the study period, the eagle population showed three distinct phases: (i) a population increase with negative density-dependent fecundity; (ii) a period of stability without any relationship between density and fecundity; and (iii) a population decrease with a positive relationship between density and fecundity. 3A dramatic increase in annual adult mortality due to an increase in poisoning in hunting areas surrounding the Doñana National Park was recorded. The use of poison against generalist predators accounted for more than 54% of the total number of breeding eagles found dead since 1990, increasing annual adult mortality from 6·07 to 12·01%. 4This high mortality reduced the population annually by 6% during the 1992,2004 period. Also, the population changed from a negative to a positive relationship between density and fecundity (Allee effect). These trends made the population approach extinction due to the double effect of increasing breeder mortality and low availability of floaters. 5A supplementary feeding programme established in 1990 did not increase fecundity because it was a consequence of high adult mortality rather than low food availability. The high mortality of adults increased the risk of breeding failure and also decreased the availability of floaters, decreasing the likelihood of mate substitution. 6Synthesis and applications. The main target in species conservation management plans is often a single demographic parameter (typically, fecundity in raptor populations). Our research demonstrates, however, that demographic parameters must not be considered as independent variables when formulating management programmes. The essential relationship between adult mortality and the availability of floaters must be better understood to avoid the risk of implementing inefficient management strategies. Although fecundity was low in this eagle population, it was a result of high adult mortality rates. Consequently, management must aim to correct the unusual mortality and recover the floater population. [source] The Frequency of Financial Analysts' Forecast Revisions: Theory and Evidence about Determinants of Demand for Predisclosure InformationJOURNAL OF BUSINESS FINANCE & ACCOUNTING, Issue 7-8 2008Craig W. Holden Abstract:, A fundamental property of a financial market is its degree of price informativeness. A major determinant of price informativeness is predisclosure information collected by financial analysts and then privately disseminated to clients, who make the recommended trades. We develop a dynamic model of the analyst's optimal strategy of forecast revision frequency with endogenous analysts and endogenous traders. We then empirically test the model's predictions. We find that forecast revision frequency is positively associated with earnings variability, trading volume, and earnings response coefficients, and negatively associated with skewness of trading volume. Thus, we find strong empirical support for our dynamic model. [source] Shifted factor analysis,Part II: AlgorithmsJOURNAL OF CHEMOMETRICS, Issue 7 2003Sungjin Hong Abstract We previously proposed a family of models that deal with the problem of factor position shift in sequential data. We conjectured that the added information provided by fitting the shifts would make the model parameters identifiable, even for two-way data. We now derive methods of parameter estimation and give the results of experiments with synthetic data. The alternating least squares (ALS) approach is not fully suitable for estimation, because factor position shifts destroy the multilinearity of the latent structure. Therefore an alternative ,quasi-ALS' approach is developed, some of its practical and theoretical properties are dealt with and several versions of the quasi-ALS algorithm are described in detail. These procedures are quite computation-intensive, but analysis of synthetic data demonstrates that the algorithms can recover shifting latent factor structure and, in the situations tested, are robust against high error levels. The results of these experiments also provide strong empirical support for our conjecture that the two-way shifted factor model has unique solutions in at least some circumstances. Copyright © 2003 John Wiley & Sons, Ltd. [source] The trade credit decision: evidence of UK firmsMANAGERIAL AND DECISION ECONOMICS, Issue 6-7 2003Nam Sang Cheng Trade credit finance and credit management are gradually gaining the research attention an area of such importance merits. One area, still far from resolved, is why trade credit is extended by non-financial firms to customers. This paper seeks to identify the generic forces behind the trade credit offer and to explore the empirical support for 20 propositions on credit motives derived from the literature and the implications of such motives to credit policies. The paper reports findings from a survey of senior finance officers involved in credit management in large UK companies. It assesses the degree to which theoretical explanations for granting trade credit are experienced in practice and whether observed differences attaching to credit motives among firms are associated with variations in credit policies and debtor days. The study found strong empirical support for seven propositions linked to competitiveness, pricing, investment and financing, and weaker support for a number of other theoretically-derived motives for trade credit extension. Factor analysis suggested a more insightful approach to classifying trade credit motives, covering investment in customers, customer's operating and financial benefits, supplier's marketing/operational benefits and market pressure to conform. In addition, two factors,customer relations and pricing flexibility,were extracted as motives for varying credit terms. Consistent with our hypothesis average debtor days were found to be significantly higher for those firms emphasising the financing, investment, and pricing flexibility propositions. These findings, and implications for future research, are explored. Copyright © 2003 John Wiley & Sons, Ltd. [source] Why Do Firms Issue Equity?THE JOURNAL OF FINANCE, Issue 1 2007AMY DITTMAR ABSTRACT We develop and test a new theory of security issuance that is consistent with the puzzling stylized fact that firms issue equity when their stock prices are high. The theory also generates new predictions. Our theory predicts that managers use equity to finance projects when they believe that investors' views about project payoffs are likely to be aligned with theirs, thus maximizing the likelihood of agreement with investors. Otherwise, they use debt. We find strong empirical support for our theory and document its incremental explanatory power over other security-issuance theories such as market timing and time-varying adverse selection. [source] Taking a "Hands On" Approach to Diversity in Higher Education: A Critical-Dialogic Model for Effective Intergroup InteractionANALYSES OF SOCIAL ISSUES & PUBLIC POLICY, Issue 1 2009Nicholas Sorensen This article reviews divergent empirical evidence on interracial contact. While research on diversity in higher education provides ample evidence for the educational benefits of engaging with diversity in informal interactions or courses, experimental and naturalistic studies in social psychology on interracial interactions reveal a complicated picture, showing what appear to be both positive and negative effects. Rather than addressing the question of whether or not to promote interracial interactions on campus, we present a critical-dialogic model of intergroup dialogue that centers on communication processes as an avenue toward intergroup relationships, understanding, and collaboration. Prior research and preliminary results from a nine-university research collaboration provide strong empirical support for the proposed model. We conclude with program and policy considerations for higher education institutions interested in promoting meaningful intergroup interaction. [source] Import competition and firm refocusingCANADIAN JOURNAL OF ECONOMICS, Issue 2 2010Runjuan Liu Abstract Recent theoretical work predicts a new margin of firm adjustment to trade liberalization; that is, multi-product firms alter their product mix to focus on their core competencies in response to trade liberalization. Using detailed product data from U.S. public firms, I find strong empirical support for this prediction. Specifically, import competition leads multi-product firms to drop peripheral products to refocus on core production. The weaker the linkages that a peripheral product shares with the core (as measured by the extent of joint sales, joint procurement, joint production, and joint sectorship), the more likely the peripheral product is to be divested in response to import competition. Certains travaux théoriques récents prédisent une nouvelle marge d'ajustement de la firme à la libéralisation du commerce : les firmes multi-produits changent leur mix de produits pour se concentrer sur leurs compétences de base en réponse à la libéralisation du commerce. A partir de données détaillées sur les produits de firmes américaines, on découvre que cette prédiction a un fort support empirique. Spécifiquement, la concurrence de l'importation amène la firme multi-produits à laisser tomber des produits périphériques pour recentrer sa production sur son noyau dur de compétences. Plus faibles sont les liens que partage un produit périphérique avec le noyau dur (mesuré par l'étendue des ventes communes, des approvisionnements conjoints, de la production liée, de la participation au même secteur) plus est grande la probabilité qu'on va désinvestir dans ce produit en réponse à la concurrence de l'importation. [source] | ||||||||||||||||