This paper provides a critical view of the cross country literature on the impact of labour market institutions and policies on the evolving pattern of unemployment in OECD countries. Such widely used indicators as the generosity of unemployment insurance or the strength of trade unions are...

This paper studies a game of strategic experimentation with two-armed bandits whose risky arm might yield a payoff only after some exponentially distributed random time. Because of free-riding, there is an inefficiently low level of experimentation in any equilibrium where the players use...

In this paper we review some recent work on limit results on realised power variation, that is sums of powers of absolute increments of various semimartingales. A special case of this analysis is realised variance and its probability limit, quadratic variation. Such quantities often appear in...

Contemporary policy debates on the macroeconomics of aid often concentrate on short-run Dutch disease effects, ignoring the possible supply model of aid and public expenditure in which public infrastructure capital generates an inter-temporal productivity spill over for both tradable and...

Several aspects of GARCH(p, q) models that are relevant for empirical applications are investigated. In particular, it is noted that the inclusion of dummy variables as regressors can lead to multimodality in the GARCH likelihood. This invalidates standard inference on the estimated...

This paper examines the combined effects of changes in prices, income and demographic composition on adult and young, male and female members of households. The recently developed Quadratic Almost Ideal Demand System (QUAIDS) is used since a demand system provides a unified framework for...

This paper examines the determinants of child health in rural Ethiopia for the period 1994-97 using height-for-age z-scores as measures of long-term health. The panel nature of the data helps to control for community, household and individual level heterogeneity. Unlike most previous studies,...

The methodology by Lazear and Michael (1988) is used to decompose household expenditures into that for adults and children. Some specific estimation procedures are modified and cross section-time series (panel) data are used to control for household level heterogeneity. In addition, a new and...

Do openness to trade and higher levels of human capital promote faster productivity growth? That they do is a key implication of several versions of endogenous growth theory. To answer the question we use panel data on 93 countries spanning the 1970-2000 period. Controlling for fixed effects as...

The objective of this study is to compare alternative computerized model-selection strategies in the context of the vector autoregressive (VAR) modeling framework. The focus is on a comparison of subset modeling strategies with the general-to-specific reduction approach automated by PcGets....