We use panel data from 1983 to 1997 for the 42 police force areas in England and Wales to test the hypothesis that legalizing abortion contributes to lower crime rates. We provide an advance on previous work by focusing on the impact of possible endogeneity of effective abortion rates with...

In this study, we use enterprise-level data to calculate estimates of labour productivity growth in the UK broadcasting sector between 1999 and 2004 and TFP growth between 1998 and 2004. We present estimates using both gross output and gross value added. We also present TFP estimates separately...

Since April 1998, the only public health clinic in McHenry County, Illinois, has required minors to obtain parental consent before receiving prescription contraceptives. This study uses data on the number of births and abortions to compare changes in birth and abortion rates among minors in the...

This paper examines potential explanations for recent declines in teenage pregnancy, in particular, the promotion of long acting reversible contraception (LARCs). We estimate models of teenage conception, birth and abortion rates using panel data from England which allows us to control for...

This paper explores a model of bounded rationality in evolutionary game play in which agent choice is based on a social psychological process of categorization and social inference. The computer simulation of the model demonstrates that agents' increasing ability to categorize opponents in the...

Measurement activities are central to virtually all technical activities including engineering, construction and scientific research. In addition, the standardisation of measurement can generate considerable economies in production and exchange interactions between economic agents. This paper...

This paper investigates the link between international networks and export intensity using data from the UK Community Innovation Survey. The most important finding is that intra-firm links are associated with an approximate doubling of exports. Surprisingly, our examination of interactive size...