Modelling soccer matches using bivariate discrete distributions with general dependence structure

In this paper copulas are used to generate bivariate discrete distributions. These distributions are fitted to soccer data from the English Premier League. An interesting aspect of these data is that the primary variable of interest, the discrete pair shots-for and shots-against, exhibits negative dependence; thus, in particular, we apply bivariate Poisson-related distributions that allow such dependence. The paper focuses on Archimedian copulas, for which the dependence structure is fully determined by a one-dimensional projection that is invariant under marginal transformations. Diagnostic plots for copula fit based on this projection are adapted to deal with discrete variables. Covariates relating to within-match contributions such as numbers of passes and tackles are introduced to explain variability in shot outcomes. The results of this analysis would appear to support the notion that playing the 'beautiful game' is an effective strategy—more passes and crosses contribute to more effective play and more shots on the goal.     

Does Brain Drain Lead to Institutional Gain?

A country's endowment of human capital affects its institutions through various channels. This raises the possibility that skilled emigration can leave its mark on a country's institutional development. We explore the impact of emigrant human capital on home country's institutional quality. Using geographical and genetic distance‐based instrumental variables for emigration and a dynamic panel estimation method, we find that human capital emigration helps the home country's political institutions, but hurts economic institutions. The conventional ‘brain drain’ argument, therefore, needs to incorporate the institutional changes due to skilled labour emigration.     

Demand-side stabilization policies: What is the evidence of their potential?

Using disaggregated data for the United States, this paper explores the effects of the variability of fiscal and monetary policy shocks. Higher variability of government spending shocks around a steady-state growth trend results in, on average, a decline in aggregate demand growth and inflation, with limited effects on output growth. On the other hand, higher variability of monetary shocks results in, on average, an increase in inflation and a decline in output growth. These results indicate the desirability of avoiding large fluctuations over time in either government spending or the money supply.     

Recreation and the Environment as Cultural Dimensions in Contemporary American Society

This paper broadly explores changing outdoor recreation demands, environmental opinions and demographics in the United States. With this country's population predicted to more than double by the end of this century, it is imperative that we understand these trends and their implications for better managing our natural environment and providing opportunities for outdoor recreation in that environment. Using national survey data, we have described differences in recreation behavior (participation) and environmental attitudes nationwide across six socio-demographic factors-race, country of birth, rural-urban residence, region of the country, age and income. Results indicate that demographic differences, recreation activity choices and people's environmental positions are linked.     

The changing pattern of futures research in the USA

Although mainly confined to ‘formal’ work in the field, a recent survey of futures research in the United States does show that a considerable number of changes have occurred. There have been major shifts in the orientation and focus of work being done, in the range of disciplines involved, and in the overall relationship of the field to the larger society. However, the earlier assessment¹ and its critical evaluation of the range and content of futures research remains valid in broad outline. The specific differences which emerge from this second study are discussed from several viewpoints.     

Is Post-Communist Health Spending Unusual?

What factors determine a country's spending on health? And what factors determine the share of spending financed by the public sector? Taking these factors into account, is post-communist health spending unusual? For the OECD economies, we find that per capita health spending is strongly related to per capita income, with an elasticity of about 1.5. The elasticity for developing economies is close to one. Spending is also positively related to the elderly dependency rate, but the relationship is weaker than a static comparison of spending by the elderly and non-elderly would suggest. Even though health spending as a share of GDP in the post-communist countries of eastern and central Europe is below the OECD average, there is evidence of above normal health spending in most countries when we control for income and demographics. For Hungary, the ‘excess’ spending reached over three percentage points of GDP in 1994. For the OECD sample, four development indicators account for half the variation in the public sector share of total health spending. Political variables help explain the remainder. If the post-communist countries converge to the market economy pattern, the share of public financing will fall, yet still remain well above half.     

MAINTAINING MARKET POSITION: TEAM PERFORMANCE,REVENUE AND WAGE EXPENDITURE IN THE ENGLISH PREMIER LEAGUE

This paper investigates the relationship between playing success and commercial success in team sports. Utilizing a data set relating to the English Premier League that combines both financial measures and indicators of playing skills and performances, our empirical analysis is based on three behavioural equations. Our analysis indicates that on‐field success can be directly related to players’ skills and abilities and that revenue is positively related to on‐field success. Wage expenditure is also shown to systematically reflect player skills and performances. One interpretation of this evidence is that investment in players’ skills and ability buys on‐field success, with richer teams becoming ever richer and able to maintain or even build upon success by spending more on players than less successful clubs. To the extent that richer clubs are successful in their objective there is a causal link between revenue earned and competitive imbalance via investments in players. The implications of this tendency within a league are discussed in our conclusion, which also considers the potentially wider implications of our study as they relate to the evolution of firm size and issues of market share.     

Brain drain or brain bank? The impact of skilled emigration on poor-country innovation

The development prospects of a poor country or region depend in part on its capacity for innovation. In turn, the productivity of its innovators, whom are often concentrated around urban centers, depends on their access to technological knowledge. The emigration of highly skilled individuals weakens local knowledge networks (brain drain) but may also help remaining innovators access valuable knowledge accumulated abroad (brain bank). We develop a model in which the size of the optimal innovator Diaspora depends on the competing strengths of co-location and Diaspora effects for accessing knowledge. Then, using patent citation data associated with inventions from India, we estimate the key co-location and Diaspora parameters. The net effect of innovator emigration is to harm domestic knowledge access, on average. However, knowledge access conferred by the Diaspora is particularly valuable in the production of India’s most important inventions as measured by citations received. Thus, our findings imply that the optimal emigration level may depend, at least partly, on the relative value resulting from the most cited compared to average inventions.