This paper solves for a firm's optimal cash holding policy within a continuous time, contingent claims framework that has been extended to incorporate most of the significant contracting frictions that have been identified in the corporate finance literature. Under the optimal policy the firm...

This paper explores the interrelation between the degree of unemployment persistence and the unemployment-productivity trade-off. The analysis suggests that the more effective are structural labour market policies (designed to change labour market institutions and laws, such as job security...

Analysis of our new, 16-year dataset on the Colombian civil war finds under Uribe: guerrilla and paramilitary attacks dropping sharply against long-run averages since 1988, lower for April-December, 2003; government-guerrilla clashes at all-time highs, exceeding guerrilla attacks; civilian killings...

The new and prospective entrants to the EC join an economic environment that itself is undergoing rapid change. The combination of the European Monetary System (EMS) and the integration of European financial markets in 1992 will alter substantially the environment of monetary and fiscal policy...

We study and endogenous growth model where a profit-motivated R&D sector coexists with the introduction of free blueprints invented by philanthropists. These goods are priced at marginal cost, contrary to proprietary ones, which are produced by a monopoly owned by the inventor. We show that...

We use a new sample of UK female identical twins to estimate private economic returns to education. We report findings in three areas. First, we use identical twins, to control for family effects and genetic ability bias, and the education reported by the other twin to control for schooling...

In this paper we argue that measured (RPI) inflation is conceptually mismatched with core inflation: the difference is more than just `measurement error'. We propose a technique for measuring core inflation based on an explicit long-run economic hypothesis. Core inflation is defined as that...

We develop a theoretical framework for understanding how agents form expectations about economic variables with a partially predictable component. Our model incorporates the effect of measurement errors and heterogeneity in individual forecasters' prior beliefs and their information signals and...

This Paper elaborates on the recent race to sequence the human genome. Starting from the debate arising from the genome case on public versus private research, the Paper shows that in some fundamental research areas, where knowledge externalities play an important role, market and non-market...

This Paper studies the border between shadow employment and unemployment. It argues that the two macroeconomic phenomena are two faces of the same coin: any policy aimed at reducing the former will increase the latter. Theoretically, it proposes and solves a matching model of the labour market,...