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41.
Relative price volatility under Sudden Stops: The relevance of balance sheet effects 总被引:1,自引:0,他引:1
Guillermo A. Calvo Alejandro Izquierdo Rudy Loo-Kung 《Journal of International Economics》2006,69(1):231-254
Sudden Stops are associated with increased volatility in relative prices. We introduce a model based on information acquisition to rationalize this increased volatility. An empirical analysis of the conditional variance of the wholesale price to consumer price ratio using panel ARCH techniques confirms the relevance of Sudden Stops and potential balance sheet effects as key determinants of relative price volatility, where balance sheet effects are captured by the interaction of a proxy for potential changes in the real exchange rate (linked to the degree of external leverage of the absorption of tradable goods) and a measure of domestic liability dollarization. 相似文献
42.
Guillermo D'Andrea 《International Review of Retail, Distribution & Consumer Research》2013,23(1):85-101
Latin America's retail landscape has changed dramatically over the last 20 years. Attracted by deregulation and a sizable and growing market, modern retailers arrived looking for the next El Dorado. But signs of maturity appeared much before expected. Traditional retailers modernized their offer, while keeping their appeal to the emerging consumers. While chain retail has concentrated earlier than expected – and faster by the hand of crisis that are usual in emerging markets –, local chains have developed formats which add modernity to their understanding of their customers' base. By providing better access through convenience and credit to a broader range that even includes affordable design and quality, local chains are showing the way to the growing mass customers that form Latin America's new emerging middle class. And leveraging on this customer understanding, they are redefining concepts like convenience and crossing borders to grab the opportunity of the new emerging consumers. This article covers the evolution of retailing in Latin America over the past two decades, and provides insights on the segment that has brought the most significant growth: emerging consumers. 相似文献
43.
In this paper, we examine linear and nonlinear co-movements that appear in the real exchange rates of a group of 28 developed and developing countries. The matrix of Pearson correlation and Phase Synchronous coefficients have been used in order to construct a topology and hierarchy of countries by using the Minimum Spanning Tree (MST). In addition, the MST cost and global correlation coefficients have been calculated to observe the co-movements’ dynamics throughout the time sample. By comparing Pearson and Phase Synchronous information, a new methodology is emphasized; one that can uncover meaningful information pertaining to the contagion economic issue and, more generally, the debate surrounding interdependence and/or contagion in financial time series. Our results suggest some evidence of contagion in the Asian currency crises; however, this contagion is driven by previous and stable interdependence. 相似文献
44.
Paula Fernández García Guillermo Vallejo Pablo Livacic-Rojas Javier Herrero Marcelino Cuesta 《Quality and Quantity》2010,44(2):289-301
In this article we examine the behaviour of six univariate statistics for analyzing the data of a Split-plot factorial design. Except for the univariate analysis of variance, which assumes that the dispersion matrix underlying the data is spherical, the other five procedures assume absence of sphericity. However, they do so with a clear distinction between two alternatives, insofar as three of them presuppose an arbitrary correlation between the data and two presuppose serial autocorrelation. These six approaches were compared with regard to their robustness under multivariate normality in the absence of sphericity, both when there was serial autocorrelation and when there was underlying arbitrary correlation. In general, Monte Carlo comparisons show that when underlying the data there is a autoregressive stationary or decreasing structured non-stationary autoregressive process, the Hearne, Clark and Hatch procedure is the most robust. In the rest of the conditions studied, i.e., increasing structured non-stationarity autoregressive and arbitrary non-stationarity (autoregressive and with arbitrary correlation), the Greenhouse-Geisser and Lecoutre statistics display the best behaviour. 相似文献
45.
Dynamic Volume-Return Relation of Individual Stocks 总被引:12,自引:0,他引:12
Llorente Guillermo; Michaely Roni; Saar Gideon; Wang Jiang 《Review of Financial Studies》2002,15(4):1005-1047
We examine the dynamic relation between return and volume ofindividual stocks. Using a simple model in which investors tradeto share risk or speculate on private information, we show thatreturns generated by risk-sharing trades tend to reverse themselves,while returns generated by speculative trades tend to continuethemselves. We test this theoretical prediction by analyzingthe relation between daily volume and first-order return autocorrelationfor individual stocks listed on the NYSE and AMEX. We find thatthe cross-sectional variation in the relation between volumeand return autocorrelation is related to the extent of informedtrading in a manner consistent with the theoretical prediction. 相似文献
46.
The multilinear extension has been shown to be an effective tool for computing the Shapley value of an n-person game. We modify here the method for the multilinear extension to calculate the modified coalition structure value (CS-value) for such games. 相似文献
47.
The dynamic efficiency of closures in bioeconomic systems depends upon stock levels and in situ values that evolve over time, and on relative costs of implementation. A model of a harvested metapopulation is presented in which second-best reduction of harvest from open-access levels using input quotas balances monitoring costs against dynamic benefits of mitigating overharvesting. Temporary or permanent closures—though generally still second best—are preferable to quotas under certain conditions, as demonstrated for a representative patch and time period. Interactions between patches are discussed. Numerical solutions illustrate comparative dynamics of closure use, and show their potential benefits in a dynamic regulatory path. 相似文献
48.
Soil erosion is one of the most important of today’s environmental externalities and a major threat to sustainability of agricultural
system. It constitutes the most widespread forms of land degradation throughout the world. The aim of this paper is to estimate
the amount of soil erosion generated by the current cropping systems in Tunisia and to assess the economic and ecological
impacts of policy instruments designed to handle this problem. The analysed policy options are based on soil conservation
practices and direct incentive farming anti-erosive measures. The selected measures are the reduction of tillage, the avoidance
of bare fallow and the use of legume-based crop rotation. A bio-economic modelling framework coupling the biophysical model
EPIC to a non-linear dynamic programming farm model was used for this impact analysis. It was performed in a set of representative
farms belonging to a region in North-Eastern Tunisia (Zaghouan) strongly affected by this phenomenon. The main finding of
this research is the non-convexity of the crop yield—soil erosion space. That is, the use of more intensive techniques to
increase productivity (i.e. crop yield) may be accompanied by rough changes in soil erosion (damage) curves, manifested either
by non-monotony or non-convexity. In term of policy options and because of giving up convexity assumptions, incentive anti-erosive
measures appear more efficient than conventional environmental policies such as Pigouvian taxes or quota systems. The implementation
of soil conservation practices would leads to a net decrease in soil erosion and an increase in farm income. However, with
the current interest rate of 7% the possible rise in income is not enough to stimulate farmers to invest on these practices.
A maximum rate of 4% would be necessary to make this policy option more effective. 相似文献
49.
The aim of this paper is to extend recent reflection on the evolution of strategic management by analyzing the field's object of study: strategy. We show how the concept of strategy has formed the backbone of the development of strategic management as an academic field and how consensus regarding it has evolved in the academic community during the stages of its historical development. We also address changes in the structure of the definition as it evolved through the growth of internal consistency, the centrality degree of the key terms that have shaped it, and how this evolution fostered the emergence of new research topics during the development of the discipline. Copyright © 2011 John Wiley & Sons, Ltd. 相似文献
50.
Stagflationary Effects of Stabilization Programs in Reforming Socialist Countries: Enterprise-Side and Household-Side Factors 总被引:1,自引:0,他引:1
Dismantling subsidies could give rise to serious macroeconomicdifficulties in the short run. This article explores a viewbased on the enterprise sector as a central source and mainchannel of the stagflation phenomenon, using as an example thestagflation that followed the 1990 stabilization program inPoland. The stagflation phenomenon is linked to features ofthe financial market that are somewhat peculiar to reformingsocialist economies: the weak credit links between householdsand enterprises, and the existence of large interenterprisedebt. The policy implications of the enterprise-side view includemore explicit consideration of initial conditions in the creditmarket, implementation of privatization schemes, and the developmentof a domestic banking system. 相似文献