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91.
The lack of individual firm information on output prices is a major problem in the econometrics of production. In particular, it may be expected to account for a significant share of the large discrepancies found between the cross‐sectional and time‐series estimates of capital and scale elasticities. However, taking advantage of two panel‐data samples for which we had such information, we find that estimating the revenue function (using a nominal output measure) or the production function proper (using a real output measure) makes very little difference for our results. The biases due to other sources of specification errors are probably more important. 相似文献
92.
In the context of a monetary union, to keep a territorial equilibrium in terms of economic activity and employment, the relationship between real wages and productivity is crucial. In this paper, empirical evidence about the response of wages to productivity is obtained for 20 OECD countries and the role of labour market institutions to explain differences in this response is analysed. 相似文献
93.
Jordi McKenzie 《Economics Letters》2011,113(3):259-262
This article develops a simple theoretical framework to show how forecasters may bias downward point predictions under the assumption that the asymmetric loss function is directly related to the (Mean) Absolute Percentage Error (M)APE. 相似文献
94.
Loss of water availability and stream biodiversity under land abandonment and climate change in a Mediterranean catchment (Olzinelles,NE Spain) 总被引:1,自引:0,他引:1
Iago Otero Martí Boada Anna Badia Eduard Pla Jordi Vayreda Santi Sabaté Carles A. Gracia Josep Peñuelas 《Land use policy》2011
In the north rim of the Mediterranean region, where forest cover is increasing as a result of land abandonment and temperatures are rising as a result of climate change, there is increasing interest for the effects of such changes on the runoff of water courses. This is a paramount issue for the conservation of many freshwater habitats and species. In this work we studied the effects of both an increase in forest cover after depopulation and land abandonment and an increase in temperature on the runoff of a Mediterranean catchment and on the aquatic and semi-aquatic fauna species of the stream (Olzinelles valley, NE Spain). Although in our simulation no decreasing trend in runoff is detected, the monthly runoff-rainfall ratio is now 15% lower than 30 years ago, a fact that may be attributed to a drier period rather than to the small afforestation experienced by the catchment in the last decades. Other factors such as increasing temperatures, changing rainfall patterns and increasing canopy cover are discussed. The observed decrease in the water flow has caused the disappearance of white-clawed crayfish (Austropotamobius pallipes), Mediterranean barbel (Barbus meridionalis), chub (Squalius cephalus), European eel (Anguilla anguilla), and southern water vole (Arvicola sapidus). Our results suggest that in a progressively warmer climate, and especially after land abandonment processes, management of Mediterranean mountain areas should be oriented towards an appropriate distribution of agrarian and forest land-covers in terms of water availability. Down to the stream scale, the pools that keep water throughout the year should be conserved and extended to enhance its potential to maintain aquatic and semi-aquatic species populations. 相似文献
95.
96.
Jordi Domenech 《Explorations in Economic History》2007,44(3):469-486
This paper studies the decline of the working day in Spain from 1885 to 1920. The decline was more continuous than previously thought. Differences in hours reinforce wage differentials, showing labor markets were not well integrated. Cross-sectional and time-series analysis suggests that hour reductions reflect a labor supply rather than a labor demand effect. Given the comparatively slow growth of real wages in Spain from 1870 to 1920, the Spanish case shows that international convergence in hours of work must have been stronger than convergence in wages. 相似文献
97.
This paper studies the problem of information sharing among insiders in a financial market with traders who are not price takers, but act strategically. The different types of associations are ranked from the viewpoint of insiders' profits. As a byproduct, I also consider the decision problem faced by a monopolistic producer of information who is able to control the quality of the information he sells. 相似文献
98.
Jordi Gali 《Economic Theory》1996,8(2):251-266
Summary The standard neoclassical growth model is modified by introducing a market structure characterized by monopolistic competition and variable demand elasticities. In equilibrium, the price elasticity of the demand schedule facing a typical firm is a function of the aggregate savings rate. The latter feature results from an assumed wedge between the elasticity of substitution across goods in productive activities and that in consumption. In contrast with most examples in the literature our model does not require increasing returns (internal or external) in order to generate multiple equilibria.Thanks are due to Jess Benhabib, Duncan Foley, Oded Galor and participants in seminars at the Econometric Society Summer Meetings (Boston, 1993), NBER 1993 Summer Institute, CORE, UAB, and European University Institute for helpful comments. 相似文献
99.
Fiscal policy and monetary integration in Europe 总被引:10,自引:1,他引:9
100.
We analyse the welfare impact of greater wage flexibility in the presence of an occasionally binding zero lower bound (ZLB) constraint on the nominal interest rate. We show that the ZLB constraint generally amplifies the adverse effects of greater wage flexibility on welfare when the central bank follows a conventional Taylor rule. When demand shocks are the driving force, the ZLB implies that an increase in wage flexibility reduces welfare even under the optimal monetary policy with commitment. 相似文献