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1.
There are two variance components embedded in the returns constructed using high frequency asset prices: the time-varying variance of the unobservable efficient returns that would prevail in a frictionless economy and the variance of the equally unobservable microstructure noise. Using sample moments of high frequency return data recorded at different frequencies, we provide a simple and robust technique to identify both variance components. 相似文献
2.
Federico Echenique 《Economic Theory》2003,22(4):903-905
Summary. I prove that the equilibrium set in a two-player game with complementarities, and totally ordered strategy spaces, is a sublattice
of the joint strategy space.
Received: May 31, 2001; revised version: October 4, 2002 相似文献
3.
Federico Revelli 《Journal of public economics》2006,90(3):459-475
This paper investigates whether national evaluation of decentralised government performance tends, by lessening local information spill-overs, to reduce the scope for local performance comparisons and consequently to lower the extent of spatial auto-correlation among local government expenditures. It analyses local government expenditures on personal social services in the UK before and after the introduction of a national performance assessment system (SSPR, Social Services Performance Rating) that would attribute a rating to each local authority. The empirical evidence is consistent with the hypothesis that the SSPR has reduced local yardstick competition. 相似文献
4.
Federico Echenique 《Games and Economic Behavior》2004,46(2):348-364
I prove the subgame-perfect equivalent of the basic result for Nash equilibria in normal-form games of strategic complements: the set of subgame-perfect equilibria is a nonempty, complete lattice—in particular, subgame-perfect Nash equilibria exist. For this purpose I introduce a device that allows the study of the set of subgame-perfect equilibria as the set of fixed points of a correspondence. My results are limited because extensive-form games of strategic complementarities turn out—surprisingly—to be a very restrictive class of games. 相似文献
5.
We examine the impact of heterogeneous discounting on collusion in dynamic Bertrand competition. We show exactly when collusion can be sustained and how collusion would be organized efficiently with heterogeneous discounting. First, we show that collusion is possible if and only if the average discount factor exceeds a certain threshold, with or without capacity constraints. Next, we identify a dynamic pattern of market share that characterizes efficient collusion and obtain the unique long‐run prediction despite the presence of multiple equilibria. In the long run, the most patient firm and the most impatient firm tend to dominate the market. 相似文献
6.
7.
Endogenous market structures and contract theory: Delegation, principal-agent contracts, screening, franchising and tying 总被引:2,自引:0,他引:2
Federico Etro 《European Economic Review》2011,(4):463-479
I study the role of unilateral strategic contracts for firms active in markets with price competition and endogenous entry. Traditional results change substantially when the market structure is endogenous rather than exogenous. They concern (1) contracts of managerial delegation to non-profit maximizers, (2) incentive principal-agent contracts in the presence of moral hazard on cost-reducing activities, (3) screening contracts in case of asymmetric information on the productivity of the managers, (4) vertical contracts of franchising in case of hold-up problems and (5) tying contracts by monopolists competing also in secondary markets. Firms use always these contracts to strengthen price competition and manage to obtain positive profits in spite of free entry. 相似文献
8.
The authors proposed an analysis of the determinants of purchase intentions and willingness to pay for minimally processed fruit. For this purpose, on-field research was conducted that involved 589 consumers. A questionnaire, gathered in Italy and based on a Likert scale, was administered to investigate intentions to purchase minimally processed fruit from environmentally sustainable farms, simulating a minimally processed product with an eco-label. Via structural equation modeling, the authors develop propositions representing a theoretical approach in the context of purchasing food products. By analyzing two different types of consciousness (health and green), the deduced managerial implications make it possible to assess that the green consciousness influences the attitude and affects the choices and behaviors of consumers. The potential adoption of an eco-label on this kind of food product could be seen as a useful marketing tool for new markets. 相似文献
9.
The classical stochastic frontier panel data models provide no mechanism to disentangle individual time invariant unobserved heterogeneity from inefficiency. Greene (2005a, b) proposed the so-called “true” fixed-effects specification that distinguishes these two latent components. However, due to the incidental parameters problem, his maximum likelihood estimator may lead to biased variance estimates. We propose two alternative estimators that achieve consistency for with fixed . Furthermore, we extend the Chen et al. (2014) results providing a feasible estimator when the inefficiency is heteroskedastic and follows a first-order autoregressive process. We investigate the behavior of the proposed estimators through Monte Carlo simulations showing good finite sample properties, especially in small samples. An application to hospitals’ technical efficiency illustrates the usefulness of the new approach. 相似文献
10.
Federico Mini 《Review of Industrial Organization》2018,53(3):535-561
I analyze empirically all of the European Commission’s decisions regarding “unilateral effects” aspects of horizontal mergers before and after the 2004 reform, which introduced the “significant impediment to effective competition” test in merger policy. I find that, after the reform, the Commission did not change its stance toward mergers to monopoly or quasi-monopoly (almost always challenged) and mergers in un-concentrated markets (almost never). The new test produced more frequent challenges when the combined entity is not the largest firm, but these cases remain rare. The Commission’s stance toward mergers that fall between these polar opposites appears to have been tougher pre-reform ceteris paribus. 相似文献