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排序方式: 共有346条查询结果,搜索用时 15 毫秒
121.
Mixed causal–noncausal autoregressive (MAR) models have been proposed to model time series exhibiting nonlinear dynamics. Possible exogenous regressors are typically substituted into the error term to maintain the MAR structure of the dependent variable. We introduce a representation including these covariates called MARX to study their direct impact. The asymptotic distribution of the MARX parameters is derived for a class of non-Gaussian densities. For a Student likelihood, closed-form standard errors are provided. By simulations, we evaluate the MARX model selection procedure using information criteria. We examine the influence of the exchange rate and industrial production index on commodity prices. 相似文献
122.
The existence and strong consistency of the maximum likelihood estimator are analyzed in the context of dichotomous logit models. Sufficient conditions are given for the asymptotic normality of this estimator. 相似文献
123.
We consider a discrete-time two-sector CES economy with sector specific external effects in which factor substitutability differs across sectors. For this general model, we provide sufficient conditions on the elasticities of capital/labor substitution for local indeterminacy of equilibria.Acknowledgement We would like to thank two anonymous referees, the editor Dieter Bös and Tapan Mitra for comments on an earlier version of this paper, previously entitled Capital Depreciation, Factors Substitutability and Indeterminacy, which allowed us to improve considerably the results. 相似文献
124.
We study the relation between international trade and the gains to reform labor markets by removing firing restrictions. We find that trade linkages imply substantially smaller benefits to reform than those calculated in the closed economy general equilibrium model of Hopenhayn and Rogerson [Hopenhayn, Hugo, Rogerson, Richard, 1993. Job Turnover and policy evaluations: a general equilibrium analysis. Journal of Political Economy 101 (5), 915–938 October]. When economies trade, labor market policies in one country spill over to other countries through their effect on the terms of trade. A key finding in the open economy is that the share of the welfare gains from domestic labor market reform exported substantially exceeds the share of goods exported. Thus, with international trade, a country retains little to no benefit from unilaterally reforming its labor market. A coordinated elimination of firing taxes yields considerable benefits. We also find that the U.K. benefits from labor market reform by its continental trading partners. These insights provide some explanation for recent efforts toward labor market reform in the European Union. 相似文献
125.
We examine stock returns of firms with international exposure. Our empirical work relies on Campbell's variance decomposition framework. Not surprisingly, we find that the volatility of discount rate and cash flow news increase with the degree of international exposure. As firms globalize, the cash flow effect is good news, while the discount rate effect amounts to bad news. The surprising result is that the covariance between the news terms increases with international exposure. This finding provides indirect evidence for the proposition that foreign exchange (FX) risk is a priced factor in the cross‐section of risk‐adjusted expected returns. JEL Classifications: G12, G15; EFM Classification Code: 330 相似文献
126.
127.
Alain McLaren 《Review of Development Economics》2015,19(2):415-433
This paper explores the asymmetries in price transmission from international to local markets. We expect the presence of large intermediaries in agricultural markets to lead to a stronger price transmission when international prices decline than when they rise. The empirical evidence confirms the presence of asymmetric price transmission consistent with the presence of large intermediaries with monopsony power. 相似文献
128.
We characterize the set of second‐best “menus” of student‐loan contracts in an economy with risky labor‐market outcomes, adverse selection, moral hazard, and risk aversion. We combine student loans with optimal income taxation. Second‐best optima provide incomplete insurance because of moral hazard. Optimal repayments must be income contingent, or the income tax must comprise a graduate tax. Individuals are ex ante unequal because of differing probabilities of success, and ex post unequal, because taxation trades off incentives and redistribution. In addition, second‐best optima exhibit an interim equalization property: the poststudy but prework expected utilities of newly graduated student types must be equal. 相似文献
129.
We explore the link between wealth inequality and output fluctuations in a general two-sector neoclassical growth model with endogenous labor and heterogeneous agents. When agents have homogeneous CRRA preferences and individual wealth is Pareto distributed, a sufficiently large rise in the Gini index typically leads to an increase in endogenous fluctuations of output. For general economies, we show that under plausible conditions on the fundamentals, wealth inequality is still a destabilizing factor. 相似文献
130.
Isabelle Clerc Olivier L’Haridon Alain Paraponaris Camelia Protopopescu Bruno Ventelou 《Applied economics》2013,45(25):3323-3337
This article presents an adaptation of the labour supply model applied to the independent medical sector. First, we model simultaneous General Practitioner (GP) decisions on both the leisure time and the consultation length for two payment schemes: fixed fees and unregulated fees. The objective of this econometric study is to validate the theoretical prediction that doctors under unregulated fees may make choices about the length of patient consultations independent of their personal leisure decision. Indeed, according to our empirical results, the bidirectional link between leisure choice and consultation length – verified with fixed fees – does not hold any longer under unregulated fees. Our findings can be seen as a necessary but not a sufficient condition to legitimize unregulated fees in general practice. 相似文献