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51.
Summary. All agents have the same ordinal ranking over all objects, receiving no object (opting out) may be preferable to some objects,
agents differ on which objects are worse than opting out, and the latter information is private. The Probabilistic Serial
assignment, improves upon (in the Pareto sense) the Random Priority assignment, that randomly orders the agents and offers
them successively the most valuable remaining object. We characterize Probabilistic Serial by efficiency in an ordinal sense,
and envy-freeness. We characterize it also by ordinal efficiency, strategyproofness and equal treatment of equals.
Received: October 5, 1999; revised version: December 20, 2000 相似文献
52.
53.
In the mid-nineties FIFA decided to increase from two to three the number of points assigned to the winning team of a soccer
match played under traditional round-robin national leagues. Since a game of soccer can be regarded as a contest, FIFA's measure
provides an interesting case-study for analysing how a change in the system of rewards (from a zero to a non-zero sum rule)
may affect the contestants' equilibrium behaviour. In this paper we try to assess, both theoretically and empirically, whether
FIFA's new point rule has changed soccer towards a more offensive game, in which teams adopt more risky strategies. In particular,
we evaluate the “na?ve hypothesis” according to which the measure would induce every team to play always more offensively,
and we explore the extent to which the change in teams' behaviour may be affected by quality differentials between teams.
Our most important hypothesis is that when the asymmetry between opposing teams is large enough, an increase in the reward
for victory induces the weaker team to play more defensively, rather than the opposite. By looking at a subset of matches
held in the Portuguese first division league, which approximate the conditions of our model, we find support for this hypothesis.
First version received: July 1999/Final version received: May 2001 相似文献
54.
Rennison (Comparing alternative output gap estimations: a Monte Carlo approach, 2003) has provided simulation-based evidence showing that the joint use of extended multivariate filters and structural vector autoregression models is optimal for estimating potential output. We use this approach to estimate the two components of potential GDP: the full-employment labour input and trend labour productivity. This decomposition is useful for identifying sources of fluctuations in potential output. It reveals, for example, that the vigorous growth rate of U.S. potential GDP recorded during the second half of the 1990s is attributable to a fall in the structural rate of unemployment and a marked upswing in trend productivity growth. 相似文献
55.
Frédéric Lordon 《Journal of Evolutionary Economics》1997,7(1):1-21
The slow and endogenous twist of economic macro-structure makes up an important evolutionary feature of capitalist economies,
and may be at the root of structural crisis. In this line, a Goodwinian growth model with increasing returns and profit-sharing
that tries to picture a simple scenario of the seventies crisis is considered. It is shown that the exhaustion of the Kaldor-Verdoorn
“productivity law” can entail, in a nonlinear framework, a “catastrophic” bifurcation from a “high” to a “low” growth path.
Slow/fast dynamical systems then allow one to formalize a multiple time-scales dynamics where the growth path is shaped by
the structural framework in which it takes place, but has also a long -un feedback. Structural change and crisis appear as
long term and endogenous outcomes. 相似文献
56.
To be competitive in today's increasingly complex and rapidly changing envi‐ronment, organizations must retain personnel and promote the well‐being of employees. We examine the relationship of both support provided to person‐nel and job quality with employee health and turnover intentions among a sample of 450 military personnel. Factors involving the supportive manage‐ment of personnel (i.e., supervisory support, organizational support, and work‐life balance) and factors pertaining to job quality (i.e., work stimulation and job clarity) were indirectly related to health and to turnover intentions through the mediating influence of job satisfaction. © 2007 Wiley Periodicals, Inc. 相似文献
57.
José M. Luengo Sagrario Arias Mario Arcos Elías R. Olivera 《Spanish Economic Review》2005,7(4):307-307
Spanish Economic Review referees (2003-2004)
Spanish Economic Review referees (2003-2004) 相似文献58.
In this paper we study a generalization of the dynamic Leontief input–output model. We extend the standard dynamic Leontief model with the balance equation of non-renewable resources. Obviously, the non-renewable stocks will decrease, exploiting primary resources. In this study we examine the controllability of this extended model by taking the consumption as the control parameter. Assuming balanced growth for both consumption and production, we investigate how long these scarce resources will cover the input needs of production and how the lifetime of the system depends on the balanced growth rate and on the consumption. In doing so, we apply classic results from control theory and on eigenvalue problems in linear algebra. 相似文献
59.
Summary. This paper studies monotone risk aversion, the aversion to monotone, mean-preserving increase in risk (Quiggin [21]), in the Rank Dependent Expected Utility (RDEU) model. This model replaces expected utility by another functional, characterized by two functions, a utility function u in conjunction with a probability-perception function f. Monotone mean-preserving increases in risk are closely related to the notion of comparative
dispersion introduced by Bickel and Lehmann [3,4] in Non-parametric Statistics. We present a characterization of the pairs (u,f) of monotone risk averse decision makers, based on an index of greediness
G
u
of the utility function u and an index of pessimism
P
f
of the probability perception function f: the decision maker is monotone risk averse if and only if
. The index of greediness (non-concavity) of u is the supremum of
taken over
. The index of pessimism of f is the infimum of
taken over 0 < v < 1. Thus,
, with G
u
= 1 iff u is concave. If
then
, i.e., f is majorized by the identity function. Since P
f
= 1 for Expected Utility maximizers,
forces u to be concave in this case; thus, the characterization of risk aversion as
is a direct generalization from EU to RDEU. A novel element is that concavity of u is not necessary. In fact, u must be concave only if P
f
= 1.Received: 10 April 2001, Revised: 18 November 2003, JEL Classification Numbers:
D81.
Correspondence to: Michéle CohenAlain Chateauneuf, Michéle Cohen, Isaac Meilijson: We are most grateful to Mark Machina, Peter Wakker and two anonymous referees for very helpful suggestions and comments. 相似文献
60.
Armando José Garcia Pires 《Spanish Economic Review》2006,8(2):83-112
This paper estimates Krugman’s (J Polit Econ 99:413–499, 1991) economic geography model using data from the Spanish NUTS 3 regions. The econometric formalization endogenously determines wages in a region as a function of income and wages in other regions. The specification adopted also allows us to study the relation between the agglomeration of economic activity, increasing returns and market access. The first result obtained is that the Spanish economy exhibits a spatial wage structure: wages in a region are positively determined by income and wages in neighboring regions. In second place it is found support for the structural relations of the underlying theoretical model, indicating the importance of scale economies and transport costs in shaping the Spanish economic geography. 相似文献