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1.
This paper explores the robustness of the superneutrality of money result to the introduction of uncertainty. While, qualitatively, superneutrality fails to obtain in our model, quantitatively the observed Tobin effect is insignificant. The equilibrium time paths of real variables are nearly unaffected by changes in the money growth rule. We argue that our conclusions reinforce the theoretical case for superneutrality.  相似文献   
2.
A substantial share of severance payments derives from private contracts or collective agreements. In this paper, we study the determination of these payments. We analyze joint bargaining over wages and severance payments in a search-and-matching model with risk-averse workers. Individual bargaining results in levels of severance pay that provide full insurance, but also depend on unemployment benefits and job-finding rates. Unions also choose full insurance. Because their higher wage demands reduce job creation, this requires higher severance pay. Severance pay observed in eight European countries, to which we calibrate the model, lies between predictions from the bargaining and union scenarios.  相似文献   
3.
We develop and analyze a structural model of efficiency wages founded on reciprocity. Workers are assumed to face an explicit trade‐off between the disutility of providing effort and the psychological benefit of reciprocating the gift of a wage offer above some reference level. The model provides a rationale for rent sharing—a feature that is very much present in the data but absent from previous formulations of the efficiency wage hypothesis. This firm‐internal perspective on efficiency wages has potentially important macroeconomic consequences: rent‐sharing considerations promote wage rigidity, internal amplification and differential responses to technology and demand shocks.  相似文献   
4.
5.
This paper proposes a dynamic GE model with standard business cycle properties that also achieves a satisfactory replication of the major financial stylized facts. We ride on two major ideas. First, we show that operating leverage, originating in the priority status of wage claims given the observed business cycle characteristics of the latter, magnifies the risk properties of the residual payments to firm owners and justifies a substantial risk premium. Further we build on the observation that the low frequency variations in income shares constitute a significant source of risk, one that is unlikely to be insurable. When we price this risk in an incomplete market framework, we obtain a GE model with return volatilities close to observations and a sizable equity premium. This is accomplished in a world of low risk aversion and standard utility function but with agent heterogeneity. Workers with restricted access to financial markets are insured by firms and the consumption and preferences of firm owners solely determine the pricing kernel.  相似文献   
6.
This paper introduces state dependent utility into the standard Mehra and Prescott [J. Monet. Econ. 15 (1985) 145] economy by allowing the representative agent's coefficient of relative risk aversion to vary with the underlying economy's growth rate. Existence of equilibrium is proved and its asymptotic properties analyzed. This generalization leads to level dependent marginal rates of substitution, a property that sharply distinguishes this model from the standard construct. For very low coefficients of relative risk aversion, the equilibrium risk free and risky security returns are demonstrated to have volatilities and an associated equity premium that substantially exceed what is found in the data. This provides a contrasting perspective on the classic “equity premium puzzle.”  相似文献   
7.
A reciprocity-based model of wage determination is incorporated into a modern dynamic general equilibrium framework and estimated on U.S. data. The estimation reveals that rent-sharing (between workers and firms) and wage entitlement (based on past wages) are important determinants of wage setting for the model to fit the dynamic responses of output, wages and inflation to various exogenous shocks. Aggregate employment conditions (measuring workers’ outside option), on the other hand, are found to play only a negligible role for wage setting. These results are consistent with micro-studies on reciprocity in labor relations but contrast with traditional efficiency wage models which emphasize aggregate labor market variables as the determinants of wage setting.  相似文献   
8.
The present note relies exclusively on numerical computation of a parametric version of a (stochastic) version of the one-sector neoclassical growth model to derive the qualitative properties of the optimal consumption/investment policy functions and of the resultant steady state, and to study the manner in which these properties are affected by an increase in the degree of shock persistence. In particular, we measure the effects of (differing degrees of) shock persistence on the means and variances of the resulting (stationary) distributions on output, consumption, and capital stock. Furthermore, we explore the effects of increasing degrees of shock persistence on the dynamic time path of the economy.  相似文献   
9.
We discuss the extent to which the expectation of a rare event which happens not to materialise over the sample period, but which is not rationally excludable from the set of possibilities – the peso problem –, can affect the behaviour of rational agents and the characteristics of market equilibrium. To that end we describe quantitatively the macroeconomic and financial properties of a standard equilibrium business cycle model modified to allow for a very small probability of a depression state. We produce a model specification for which both business cycle characteristics and mean financial returns are in accord with United States observations.This paper examines the possibility that the large equity premium observed in the United States may result from the expectations of a disaster event, or set of events, which happen not to have materialised in the sample period of observations. Such a possibility, which falls under the rubric of a peso phenomenon, is supported by recent empirical work of Goetzman and Jorion (1997). Using return data for a wide range of countries, these authors conclude that the high historical premium in the United States is unique, and they conjecture that it may be attributable to the fact that disastrous events affecting other financial markets (e.g. WWII for Japan, Germany, and other European countries) have largely bypassed the American economy.  相似文献   
10.
This paper evaluates the welfare implications of front-running by mutual fund managers. It extends the model of Kyle (1985) to a situation in which the insider with fundamentals-information competes against an insider with trade-information and in which noise trading is endogenized. Noise traders are small investors trading through mutual funds to hedge non-tradable or illiquid assets. The insider with trade-information is one of the fund managers. We find that her front-running activity reduces the liquidity costs of her customers, but it also reduces their hedging benefits. As a result, the customers of the front-running manager may be worse off and place smaller orders. The opposite is true, however, for those investors who are not subject to front-running. In aggregate, front-running has either no or positive consequences for welfare.  相似文献   
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