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Binding Constraints (binding + constraint)
Selected AbstractsThe Basic Analytics of Access to Financial ServicesFINANCIAL MARKETS, INSTITUTIONS & INSTRUMENTS, Issue 2 2007Thorsten Beck Access to financial services, or rather the lack thereof, is often indiscriminately decried as problem in many developing countries. This paper argues that the "problem of access" should rather be analyzed by identifying different demand and supply constraints. We use the concept of an access possibilities frontier, drawn for a given set of state variables, to distinguish between cases where a financial system settles below the constrained optimum, cases where this constrained optimum is too low, and,in credit services,cases where the observed outcome is excessively high. We distinguish between payment and savings services and fixed intermediation costs, on the one hand, and lending services and different sources of credit risk, on the other hand. We include both supply and demand side frictions that can lead to lower access. The analysis helps identify bankable and banked population, the binding constraint to close the gap between the two, and policies to prudently expand the bankable population. This new conceptual framework can inform the debate on adequate policies to expand access to financial services and can serve as basis for an informed measurement of access. [source] Public Investment, the Stability Pact and the ,Golden Rule'FISCAL STUDIES, Issue 2 2000Fabrizio Balassone Abstract The fiscal rules set in the Treaty of Maastricht and in the Stability and Growth Pact have sometimes been criticised as an excessively binding constraint for appropriate counter-cyclical action. The risk that the rules may permanently reduce the public sector's contribution to capital accumulation has also been pointed out. In this framework, the adoption of a ,golden rule' has been suggested. Starting from the recent debate, this paper tackles two questions: (a) the implications of the Pact for public investment and (b) the pros and cons of introducing a golden rule in EMU's fiscal framework, given the objectives of low public debts and adequate margins for a stabilising budgetary policy. The analysis suggests that the rules set in the Treaty and in the Pact may negatively influence public investment spending. However, the golden rule, although intuitively appealing, does not seem to be an appropriate solution to the problem. [source] The impact of migration on rural poverty and inequality: a case study in ChinaAGRICULTURAL ECONOMICS, Issue 2 2010Nong Zhu Migration; Poverty; Inequality; China Abstract Large numbers of agricultural labor moved from the countryside to cities after the economic reforms in China. Migration and remittances play an important role in transforming the structure of rural household income. This article examines the impact of rural-to-urban migration on rural poverty and inequality in a mountainous area of Hubei province using the data of a 2002 household survey. Since migration income is a potential substitute for farm income, we present counterfactual scenarios of what rural income, poverty, and inequality would have been in the absence of migration. Our results show that, by providing alternatives to households with lower marginal labor productivity in agriculture, migration leads to an increase in rural income. In contrast to many studies that suggest that the increasing share of nonfarm income in total income widens inequality, this article offers support for the hypothesis that migration tends to have egalitarian effects on rural income for three reasons: (1) migration is rational self-selection,farmers with higher expected return in agricultural activities and/or in local nonfarm activities choose to remain in the countryside while those with higher expected return in urban nonfarm sectors migrate; (2) households facing binding constraints of land supply are more likely to migrate; (3) poorer households benefit disproportionately from migration. [source] Lagrange Multipliers as Marginal Rates of Substitution in Multi-Constraint Optimization ProblemsMETROECONOMICA, Issue 1 2001Christian E. Weber This paper shows that, when a function is optimized subject to several binding constraints, some of the Lagrange multipliers in the dual problems can be interpreted as marginal rates of substitution among certain arguments in the generalized indirect objective function for the primal problem. It also shows how to calculate these Lagrange multipliers from observable price,quantity data. Three particular examples are discussed: a firm that minimizes costs subject to both fixed output and rationing constraints, a household that maximizes utility subject to both income and time constraints, and portfolio choice under uncertainty treated as a multiple constraint optimization problem. [source] CREDIT CRUNCH AND HOUSEHOLD WELFARE, THE CASE OF THE KOREAN FINANCIAL CRISIS,THE JAPANESE ECONOMIC REVIEW, Issue 4 2008SUNG JIN KANG We examine how the credit crunch in Korea in the late 1990s affected household behaviour and welfare. Using 1996,1998 household panel data, we estimate a consumption Euler equation, augmented by endogenous credit constraints. Korean households coped with the negative shocks of the 1997 credit crunch by reducing consumption of luxury items while maintaining food, education and health related expenditures. Our results show that, in 1997,1998, during the crisis, the probability of facing credit constraints and the resulting expected welfare loss from the binding constraints increased significantly, suggesting the gravity of the credit crunch at the household level. [source] Is it time to reduce the minimum tick sizes of the E-mini futures?THE JOURNAL OF FUTURES MARKETS, Issue 1 2005Alexander Kurov On the Chicago Mercantile Exchange (CME), so-called "E-mini" index futures contracts trade on the electronic GLOBEX trading system alongside the corresponding full-size contracts that trade on the open outcry floor. This paper finds that the current minimum tick sizes of the E-mini S&P 500 and E-mini Nasdaq-100 futures contracts act as binding constraints on the bid-ask spreads by not allowing the spreads to decline to competitive levels. We also find that, while exchange locals trade very actively on GLOBEX, they do not tend to act as liquidity suppliers. Taken together, our empirical results suggest that it is time for the CME to consider decreasing the minimum tick sizes of the S&P 500 and Nasdaq-100 E-mini futures contracts. A tick size reduction is likely to result in lower trading costs in the E-mini futures markets. © 2005 Wiley Periodicals, Inc. Jrl Fut Mark 25:79,104, 2005 [source] |