We investigate the causes of civil war, using a new data set of wars during 1960-99. We test a greed theory focusing on the ability to finance rebellion, against a grievance theory focusing on ethnic and religious divisions, political repression and inequality. We find that greed considerably...

In this paper we use a dynamic structural life-cycle model to analyze the employment, fiscal and welfare effects induced by unemployment insurance.  The model features a detailed specification of the tax and transfer system, including unemployment insurance benefits which depend on an...

The UK`s Equal Opportunities Commission has recently drawn attention to the `hidden brain drain` when women working part-time are employed in occupations below those for which they are qualified. These inferences were based on self-reporting. We give an objective and quantitative analysis of the...

This paper argues that bureaucrats are susceptible to `minimal squawk` behavior. I develop a simple model in which a desire to avoid criticism can prompt, otherwise public-spirited, bureaucrats to behave inefficiently. Decisions are taken to keep interest groups quiet and mistakes out of the...

Almost half the women in work in the UK work part-time, but views conflict: does this support a woman`s career or is it a dead-end trap? Cohort data on labour market involvement to age 42 show highly varied pathways through full/part-time/non-employment. Econometric estimation confirms that...

In this paper we develop a dynamic structural life-cycle model of labor supply behavior which fully accounts for the effects of income tax and transfers on labor supply incentives.  Additionally, the model recognizes the demand side driven rationing risk that might prevent individuals from...

Part-time work has been a major area of employment growth for women in the UK over recent decades. Almost half the women in employment now work part-time and two-thirds have worked part-time for some part of their working lives. Part-time employment is welcomed by many women as a means of...

Two particular features of the position of women in the British labour market are the extensive role of part-time work and the large part-time pay penalty. Part-time work features most prominently when women are in their 30s, the peak childcare years and, particularly for more educated women, a...

The growth process for a technological leader is different from that of a follower. While followers can grow through imitation and capital deepening, a leader must undertake original research. This suggests that as the gap between the leader and the follower narrows, the follower must undertake...

The growth process for a technological leader is different from that of a follower. While followers can grow through imitation and capital deepening, a leader must undertake original research. This suggests that as the gap between the leader and the follower narrows, the follower must undertake...