A cross-national comparison and taxonomy of DEA-based hospital efficiency studies

This paper provides the first taxonomy of hospital efficiency studies that uses data envelopment analysis (DEA) and related techniques. We provide a systematic review of 79 such studies published from 1984–2004 that represent 12 countries. Only studies written in English are considered. A cross-national comparison reveals significant differences with respect to important study characteristics such as type of DEA model selected and choice of input and output categories. Compared with US studies, European efforts are more likely to measure allocative rather than technical efficiency, use longitudinal data, and use fewer observations. We take a longitudinal perspective that illustrates the life cycle of this research, as well as its diffusion across disciplines. Our taxonomy can be used by policy makers and researchers to review past, and assemble new, DEA models.     

Industry concentration,excess returns and innovation in Australia

This paper examines market concentration and stock returns on the Australian Securities Exchange. We find that dominant companies operating in concentrated industries in Australia are able to generate significant risk‐adjusted excess stock returns. Our results for Australian data are opposite to that found by Hou and Robinson (2006) for United States market data. Hou and Robinson reason that United States firms which operate in concentrated industries are insulated from competitive pressures, have lower levels of innovation (Arrow, 1962) and therefore experience lower profitability and stock returns. By contrast, the Australian data show a significant and positive relationship between concentration and innovation expenditure. Therefore, the excess stock returns of dominant companies in Australia are consistent with previous research linking innovation expenditure with excess stock returns. We hypothesize that the apparent contradiction of our results compared with Hou and Robinson (2006) for the United States market is resolved by an examination of the differences in size and competition in United States and Australian industries and the consequent differential ability of dominant companies in the two countries to generate monopoly rents and invest in ‘Schumpeterian’ (Schumpeter, 1942) innovation.     

The Economics of Regulating Cross-border Finance: Two New Views

For much of the 20th century the dominant view in macroeconomics was that cross-border finance needed to be regulated in order to balance the ‘impossible trinity’ first sketched by John Maynard Keynes in his two books on monetary theory. The dominant view in development economics during the same period was that cross-border capital flows need to be regulated for similar reasons but also to mobilize domestic resources for economic development. The view that capital mobility was something to be constrained fell out of favor in mainstream economics by the 1980s and 1990s. The experience of numerous financial crises in the past 20 years has spawned new economic theories that reintroduce the notion that cross-border finance can cause financial instability. One strand of new theory in this realm picks up from Ragnar Nurkse, Hyman Minsky, and others, and has become popular in many emerging market capitals and in the United Nations system. Another strand of new theory comes from modern welfare economics and is gaining ground in mainstream economics, central banks, and the Bretton Woods institutions. This paper examines these new breakthroughs and traces them to their origins in economic thought. Coupled with new econometric evidence on the efficacy of capital account regulation, the regulation of capital flows is justified now more than ever.     

Advertising and Cultural Values: Reflections in the Distorted Mirror

This paper reviews the regrets and fears expressed by North American scholars about the commercialization of culture and presents a method for measuring the cultural character of advertising. This content analysis of manifest values yields a value profile of advertising and shows high consistency over time and across media. There is, however, a low correlation between this value profile and that of either the population at large or of heavy media users. This seriously challenges the conventional notion that advertising merely mirrors social values.     

The extent to which unbalanced schedules cause distortions in sports league tables

The Australian Football League (AFL) has operated its fixture on the basis of an unbalanced schedule since the league expanded from 12 to 14 teams in 1987. This system contains a number of factors (some random) determining the set of bilateral combinations of teams that play each other on an extra occasion during the course of the season, not least of all maximising attendances. While the status quo may be unavoidable to some extent (it is also a bone of contention to many fans), its implications for within-season measures of competitive balance are nonetheless obvious. This is because of the potential for biases being created in the end-of-season league table as a result of the unbalanced schedule. This paper uses a modified model to correct for this inherent bias over the seasons 1997–2008, and the results are discussed in detail. The model is also generalisable to many unbalanced schedule designs observed in professional sports leagues worldwide.     

Mechanical innovation in the industrial revolution: the case of plough design

Variations in levels of embodied technology generated variations in English plough prices in 1770. Using plough prices as a quality index, this article explains size and daily output of plough teams. It shows that variations in plough technology were due to technological change—not static optimization—and village plough technology was influenced by neighbouring villages. But technological advance was not constrained on the demand size: farmers purchased the best ploughs available. Rather, local supply of technology was the limiting factor. Technological change, urbanization, and information networks are rejected as explanations of local supply of technology. The key factor was market density.     

Niche overlap and limiting similarity: an ecological approach to the theory of the firm

This paper suggests an approach, based upon an analogy with different species competing in the environment for fixed resources, to the question of why variety is such a persistent feature of free market economies. Attention is centred upon a market characterised by a group of consumers with a distribution of incomes, which leads to a continuum of demands for different output qualities. The identification of various sufficient conditions then allows the argument to proceed through a mathematical structure first outlined in the theoretical ecology literature, resulting in a precise prediction regarding the limit to similarity between firms. This results is then applied to the U.K. Supermarket industry in 1988, and is used to provide guidance to the state of competition within the industry in that year.     

The Irish grain trade from the Famine to the First World War

This article presents the first consistent and continuous data series for the Irish grain trade, 1840-1914, showing that imports of wheat and maize rose massively. The resulting three-fold increase in Irish per caput wheat consumption occurred mostly before 1875 and brought it close to British levels by 1914. A consumer price index is constructed for the period, and it reveals that prices declined until 1900 and rose thereafter. Using the two new series (per caput wheat consumption and the price index), the authors estimate a demand function for wheat and show that the per caput increase was due to the rise in the real wage.     

Permanent and Temporary Components of Stock Prices: Evidence from Assessing Macroeconomic Shocks

This paper outlines a simple macro model with overlapping wage contracts to investigate how the temporary and permanent components of stock price movements may be related to aggregate macro-economic supply and demand disturbances. In the content of the model, we show that aggregate demand shocks have only temporary effects on real stock prices, while supply shocks may affect the level of real stock prices permanently. Moreover, the temporary component in U.S. stock prices, identified by placing appropriate structural restrictions on a vector autoregressive system estimated for the postwar period, is statistically significant. This evidence supports the mean-reversion hypothesis that stock prices are not pure random walks. The finding is robust to the choice of variables used in the vector autoregressive system and periodicity.