This paper demonstrates that when an industry faces potential entry and this threat of entry constrains pre-entry prices, cost and conduct are not identified from the comparative statics of equilibrium. In such a setting, the identifying assumption behind the well-established technique of...

Microsoft has been dominating the market for PC operating systems (OS) for the last two decades. This paper analyzes the decision of firms to standardize on the mainstream OS family and assesses whether upgrading to the latest version within the MS family is a substitute for using niche OS. We...

To analyse the consequences of the changing economic structure of the UK, we need a set of statistics broken down by industry that are consistent with the whole economy measures available from the national accounts. The theory of growth accounting then provides a framework in which the...

We explain the issue of the decision rule of the EU's Council of Ministers. We outline, in as non-technical fashion as we can, the mathematical theory (due to L S Penrose) that addresses this sort of issue. We assess the decision rule prescribed in the Nice Treaty as well as that included in the...

This paper estimates the implied stochastic process of the volatility of the Swiss market index (SMI) from the prices of options written on it. A GARCH(1,1) model is shown to be a good parameterization of the process. Then, using the GARCH option pricing model of Duan (1991), the implied...

This paper considers the asset-allocation strategies open to members of defined- contribution pension plans. We investigate a model that incorporates three sources of risk: asset risk and salary (or labour-income) risk in the accumulation phase; and interest-rate risk at the point of retirement....

Entrepreneurs are believed to be the ultimate engine of modern economic systems. Yet, the study of entrepreneurship suffers from the lack of consensus on the most crucial question: what makes an entrepreneur? A recent theory developed by Edward Lazear suggests that individuals mastering a...

The net entry contribution to aggregate productivity growth has increased dramatically in the UK over 1990s according to calculations based on data from the Annual Respondents Database (ARD). Some recent studies have tried to link this to other structural changes over the same period such as...

This paper presents an overview of our current state of knowledge regarding poor motivation of 14-16 year old school pupils in the UK. A number of experts in the field from a variety of disciplines presented papers on this topic to a series of seminars held at the London School of Economics...

If personal computers (PCs) are used to enhance learning and information gathering across a variety of subjects, then a home computer might reasonably be considered an input in an educational production function. Using data on British youths from the British Household Panel Survey between 1991...