Recently David Laibson (1998) and others have argued in favor of using hyperbolic discount functions. The purpose of this paper is to investigate whether conventional wisdom, based on the standard model with exponential discounting, also holds in the case where consumers have hyperbolic discount...

Monte Carlo simulations are used to explore the small-sample properties of a mean group and two pooled panel estimators of a regression coefficient when the regressor is I(1). We compare and contrast the effect of I(0) and I(1) errors and homogeneous and heterogeneous coefficients in a design...

This paper discusses and documents G@RCH 2.0, an Ox package dedicated to the estimation and forecasting of various univariate ARCH-type models including the GARCH, EGARCH, GJR, APARCH, IGARCH, FIGARCH, FIEGARCH and FIAPARCH specifications of the conditional variance and an AR(FI)MA specification...

For univariate time series we suggest a new variant of efficient score tests against fractional alternatives. This test has three important merits. First, by means of simulations we observe that it is superior in terms of size and power in some situations of practical interest. Second, it is...

The growing number of auction sites on the internet enable game theorists to ask strategic questions on rationality of the observed bidding behavior. The most popular of them (eBay, Amazon.com, AuctionWatch.com and Yahoo!, etc.) operate under similar sets of rules with seemingly small...

For typical parametrizations of the standard Holmstrom (1979) agency model, this paper demonstrates that the set of first-order conditions characterizing the optimal contract can be reduced to a single equation. A problem of investment financing under moral hazard is used to illustrate the...

In this paper we develop a likelihood based approach for estimating the joint equilibrium parameter distribution in random coefficient-random utility models. Under this demand specification and a profit maximizing supply specification, the equilibrium distribution of prices and quantities has an...

The literature on research joint ventures (RJVs) has emphasized internalizing spillovers and cost-sharing as motives for RJV formation. In this paper we develop an additional explanation: the incentive to exclude rivals in order to gain market power. We illustrate this effect in a simple model...

The 1990‰fs has been punctuated by a series of severe financial and currency crises: the Exchange Rate Mechanism (ERM) attacks of 1992; the Mexican peso collapse of 1994; the East Asian crisis of 1997; the Russian collapse of 1998; and the Brazilian devaluation of 1999. One striking characteristic of these...

The negative effect of smoking during a pregnancy on a child's birth weight outcome has been a consistent finding in the economics literature on estimating birth weight production functions. An important result in the literature is that the negative effect of smoking on birth weight is generally...