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1.
This paper begins by documenting the extent to which the predictions of standard Real Business Cycle (RBC) models are incompatible with observed movements in real interest rates. The main finding of the paper is that extending the baseline model to include habit persistence in consumption and adjustment costs to capital significantly improves the model's empirical performance. In our evaluation of the model's performance, we take special care of estimating and testing predictions of the model using both moments drawn directly from the data and moments calculated after identifying shocks to the stochastic trend. 相似文献
2.
Summary. We show, in the Choquet expected utility model, that preference for diversification, that is, convex preferences, is equivalent
to a concave utility index and a convex capacity. We then introduce a weaker notion of diversification, namely “sure diversification.”
We show that this implies that the core of the capacity is non-empty. The converse holds under concavity of the utility index,
which is itself equivalent to the notion of comonotone diversification, that we introduce. In an Anscombe-Aumann setting,
preference for diversification is equivalent to convexity of the capacity and preference for sure diversification is equivalent
to non-empty core. In the expected utility model, all these notions of diversification are equivalent and are represented
by the concavity of the utility index.
Received: July 27, 1999; revised version: November 7, 2000 相似文献
3.
The paper presents some results concerning the averaging approach in a general linear regression model in one dimension under suitable conditions about the martingale structure of errors. At first asymptotics of the primary and averaged estimators are discussed. Then it is shown that variances of estimators can be consistently estimated by appropriate integrated squared deviations functionals. Finally applications to the construction of confidence regions are considered. 相似文献
4.
Summary This paper investigates the dynamical properties of optimal paths in one-sector overlapping generations models without assuming that the utility function of the representative agent is separable. When the utility function is separable, the optimal growth paths monotonically converges toward the modified golden rule steady state. In the non-separable case, we show that the optimal growth path may be oscillating and optimal two-period cycles may exist. Applying these results to the model with altruism, we show that the condition of operative bequest is fully compatible with endogeneous fluctuations provided that the discount factor is close enough to one. All our results are illustrated using Cobb-Douglas utility and production functions.We thank C. Blackorby, J. Blot, P. Cartigny and one anonymous referee for helpful comments and suggestions which generally improved the exposition of the paper. We would also like to thank the participants of the Population and demography session of the European Economic Association 10th Annual Congress (Prague, The Czech Republic, September 1–4, 1995). 相似文献
5.
6.
Most transition countries used tax‐supported wage norms in the early 1990s, as a part of their market liberalization programmes. This article analyses how a firm‐level tax (or subsidy) on deviations from a pre‐set wage norm may promote employment by rotating the labour demand curve perceived by the workers’ union around the value of the norm. We derive the conditions under which it yields a positive employment effect. We test the effect of the norm on the wages on a sample of Polish firms in 1990 and 1991. The data support the role of the wage norm on the position of the perceived labour demand curve and the role of the tax rate on its slope. 相似文献
7.
This study identifies the main shocks that cause fluctuations in French output and their channels of transmission. It uses
a large-dimensional structural approximate dynamic factor model. There are three main findings. First, common shocks, especially
demand shocks, which seem to originate from the U.S., play an important role in explaining French economic activity. While
international trade, relative prices, and foreign direct investment (FDI) flows are the main channels of transmission, the
stock market, consumer confidence, and interest rates also matter. Second, France’s integration with the rest of the world
has increased over time. Third, there is some tentative evidence of regional components in explaining French output fluctuations;
country-specific components also contribute. The predominance of exogenous factors affecting French output, the asymmetry
in the transmission of shocks, and France’s participation in a currency area argue for making French goods, services, and
labor markets as flexible as possible. 相似文献
8.
9.
Adélaïde Fadhuile Stéphane Lemarié Alain Pirotte 《Revue canadienne d'agroeconomie》2016,64(2):223-252
This paper analyzes the demand of French farmers for pesticides by disaggregating among the three main categories of pesticides. We estimate the demand elasticities of herbicides, insecticides, and fungicides with respect to pesticide expenditure, and also consider crop differentiation. We retain a Linear Approximated Almost Ideal Demand System specification. A Full‐Information Maximum Likelihood estimation procedure is used to deal with corner solution problems and censored data. The estimation is based on two cross‐sections covering pesticide use of three major crops cultivated in France in 2001 and 2006. Our results show that farmers' response to price variation is very low, especially for 2001. Furthermore, elasticities of pesticide expenditure are significantly different across categories: the highest levels are obtained for fungicides and the lowest ones for insecticides. Finally, we find higher own‐price elasticities for herbicides and fungicides than for insecticides, which are less frequently used. 相似文献
10.