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1.
Julien Van Den Broeck Fernand Broeckx Leonard Kaufman 《Journal of Productivity Analysis》1990,1(1):43-78
We propose to introduce some economic performance variables of the firms and relate these with the corresponding frontier efficiency measures of 13 industries of the Belgian manufacturing sector in 1978. In order to find groups of similar firms by applying a cluster technique, we assume that this relationship is of a product life cycle nature.In the light of the product life cycle scheme itself and variations of it we can consider the possible explanatory variables of technical inefficiency in each group of firms as sources which intensify or slow-down the economic performance of the firm under consideration. Some cautious characterization of the top and bottom level clusters is formulated and linked to the efficiency issue.This paper was processed by N. R. Adam 相似文献
2.
From 2008 to 2011, commodity markets experienced growing attention from the banking industry for various reasons: the summer 2008 oil price swing, the price surge in an ounce of gold, or sharp variations in agricultural prices. As a consequence, can we hypothesize the existence of a global connection between commodities and economic cycles? If these recent events suggest that commodity markets are strongly related to the business cycle, this evidence goes nevertheless against the widespread intuition that commodity markets are a strong source of diversification in a standard cash–bond–equity portfolio. Based on a data-set from 1990 to present, this paper investigates this issue by (i) looking at the reaction of commodity markets to economic news, and (ii) using a Markov regime-switching model to analyse economic regimes and commodity markets as an asset class. 相似文献
3.
We characterize the individual's attitude towards risk, prudence and temperance in the gain and loss domains. We analyze the links between the three features of preferences for a given domain and between domains for each feature of preferences. Consequently, the reflection effect, the mixed risk aversion and the risk apportionment, are key concepts of our study. We also display some determinants for risk aversion, prudence and temperance in each domain. To do this, we conducted a lab experiment with students eliciting risk aversion, prudence and temperance in the two domains, and collected information about each subject's characteristics. 相似文献
4.
We study the optimal design of financial safety nets under limited private credit, asking whether and when it is optimal to restrict ex ante the set of investors that can receive public liquidity support. When the government lacks commitment, we show that the optimally designed safety net covers only a subset of investors. Compared to an economy where all investors are protected, this results in more liquid portfolios, better social insurance, and higher welfare. Our results can rationalize the prevalence of limited safety nets as well as the coexistence of traditional and shadow banks. 相似文献
5.
This paper addresses the problem of estimating, from randomly censored data subject to competing risks, the extreme value index of the (sub)-distribution function associated to one particular cause, in a heavy-tail framework. Asymptotic normality of the proposed estimator is established. This estimator has the form of an Aalen-Johansen integral and is the first estimator proposed in this context. Estimation of extreme quantiles of the cumulative incidence function is then addressed as a consequence. A small simulation study exhibits the performances for finite samples. 相似文献
6.
7.
Julien Berthoumieu 《International Trade Journal》2017,31(2):163-196
This article analyzes the relationship between policy instruments and technology diffusion in a North-South duopoly within an inter-temporal model. The North benefits from a monopoly period with a new technology. At the end, there is then technology diffusion from the North to the South. The Northern firm files a patent in order to slow down the diffusion. This article studies the impact of several policy instruments. The results show that the Northern government’s policy instruments slow down technology diffusion, except for an import quota. The Southern government’s policy instruments accelerate the new technology diffusion. 相似文献
8.
The aim of this note is to establish a criterion of absence of arbitrage opportunities under small transaction costs for a family of multi-asset models of financial markets. 相似文献
9.
This article brings new insights on the role played by (implied) volatility on the WTI crude oil price. An increase in the volatility subsequent to an increase in the oil price (i.e. inverse leverage effect) remains the dominant effect as it might reflect the fear of oil consumers to face rising oil prices. However, this effect is amplified by an increase in the oil price subsequent to an increase in the volatility (i.e. inverse feedback effect) with a two-day delayed effect. This lead-lag relation between the oil price and its volatility is central to any type of trading strategy based on futures and options on the OVX implied volatility index. It is of interest to traders, risk- and fund-managers. 相似文献
10.
Julien Gourdon 《International Review of Economics》2011,58(4):359-383
The relationship between trade liberalization and inequality has received considerable attention in recent years. The major
purpose of this study is to present new results on the sources of wage inequalities in manufacturing taking into account South–South
(S–S) trade. Globalization has not only lead to increasing North–South (N–S) trade, but it has also changed the direction
and composition of trade as more trade is carried out among developing countries. In this study, we find that increasing wage
inequality is associated more with the South–South trade liberalization than with the classical trade liberalization with
northern countries. A part of this increasing wage inequality due to S–S trade comes from the development of N–S trade relationship
in S–S trade that increases wage inequality in middle-income developing countries. This study also seeks to shed some light
on the link between the direction of trade and technological change. We explore the fact that S–S trade leads to a technological
change biased toward skill-intensive sectors more than N–S trade. This indirect effect increases wage inequality for all developing
countries, but it is more important in low-income countries. 相似文献