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351.
352.
Adolescents have relatively large sums of money at their disposal; How and on what goods they spend their money is the subject of this paper. An AID system describing the influences of demographic characteristics, pseudo-prices and income on various expenditure categories is estimated. The system is estimated in two steps with the first step explaining zero-expenditures. Income elasticities and pseudo-price elasticities are presented. A comparison is made on the basis of three large data sets, gathered in 1984, 1990, and 1992. 相似文献
353.
354.
Marcel Fafchamps 《Journal of development economics》1996,50(2):313-335
The lack of a proper enforcement mechanism for sovereign debt generates a commitment failure. As a result, a sovereign may seek to improve its position in debt renegotiations and thus evade its debt obligations by reducing exports. Conditionality seeks to provide a solution to the incentive problem by addressing the commitment failure. Formalizing this argument, we show that conditionality helps the repayment of sovereign debt. In certain circumstances, it can eliminate debt overhang, especially when it is coupled with concessionary lending of sufficient magnitude. It is, however, unable to restore first best. When it is anticipated by lenders, conditionality may get international financial institutions and sovereign debtors into a trap where the debt overhang persist, debt rescheduling takes place periodically, and conditionality continues indefinitely. 相似文献
355.
Mind the Gap! International Comparisons of Productivity in Services and Goods Production 总被引:1,自引:0,他引:1
Abstract. In this paper, we make a comparison of industry output, inputs and productivity growth and levels between seven advanced economies (Australia, Canada, France, Germany, the Netherlands, United Kingdom and United States). Our industry-level growth accounts make use of input data on labour quantity (hours) and composition (schooling levels), and distinguish between six different types of capital assets (including three information and communication technology (ICT) assets). The comparisons of levels rely on industry-specific purchasing power parities (PPPs) for output and inputs, within a consistent input–output framework for the year 1997. Our results show that differences in productivity growth and levels can be mainly traced to market services, not to goods-producing industries. Part of the strong productivity growth in market services in Anglo-Saxon countries, such as in Australia and Canada, may be related to relatively low productivity levels compared with the United States. In contrast, services productivity levels in continental European countries were on par with the United States in 1997, but growth in Europe was much weaker since then. In terms of factor input use, the United States is very different from all other countries, mostly because of the more intensive use of ICT capital in the United States. 相似文献
356.
Summary. Many economics problems are maximization or minimization problems, and can be formalized as problems of solving linear difference systems of the form
and r
k
-r
l
> c
kl
, for r-unknowns, with given c-constants. They typically involve strict as well as weak inequalities, with infinitely many inequalities and unknowns. Since strict inequalities are not preserved under passage to the limit, infinite systems with strict inequalities are notoriously hard to solve. We introduce a unifying tool for solving them. Our main result (Theorem 1 for the countable case, Theorem [2] for the not-necessarily-countable case) introduces a uniform solvability criterion (the
-Axiom), and our proof yields a method for solving those that are solvable. The axioms economic intuition extends the traditional ordinal notion of revealed preference to a cardinal notion. We give applications in producer theory, consumer theory, implementation theory, and constrained maximization theory.Received: 21 May 2003, Revised: 29 October 2004, JEL Classification Numbers:
C69, D21, D11, D82.
Correspondence to: Marcel K. RichterWe thank Professor Leonid Hurwicz for helpful discussions, and a referee for helpful comments. 相似文献
357.
Communication and exchange rate policy 总被引:1,自引:0,他引:1
Monetary authorities in the G3 economies have shifted in recent years towards communication as their primary policy tool to influence exchange rates. The paper assesses the effectiveness of communication, or oral interventions, by the G3 monetary authorities. It provides two key findings. First, G3 communication policies have constituted an effective policy tool in influencing exchange rates in the desired direction. And second, communication has been effective independently from the stance and direction of monetary policy and the occurrence of actual interventions. By contrast, the effectiveness of communication is strongly related to the degree of uncertainty and the positioning of participants in FX markets. Taken together, the results provide support for micro-based approaches to exchange rate modeling and are consistent with the argument that interventions affect exchange rates primarily through a coordination channel rather than a signaling channel. 相似文献
358.
Market services productivity across Europe and the US 总被引:1,自引:0,他引:1
359.
US shocks and global exchange rate configurations 总被引:1,自引:0,他引:1
Marcel Fratzscher 《Economic Policy》2008,23(54):363-409
360.
Lotteries with infinite expected utility are inconsistent with the axioms of expected utility theory. To rule them out, either the set of permissible lotteries must be restricted (to exclude, at a minimum, “fat-tailed” distributions such as that underlying the St. Petersburg Paradox and power laws that are popular in models of climate change), or the utility function must be bounded. This note explores the second approach and proposes a number of tractable specifications leading to utility functions that are bounded both from above and below. This property is intimately related to that of increasing relative risk aversion as first hypothesized by Arrow (1965). 相似文献