Trade and Tradability: Exports, Imports, and Factor Markets in the Salter-Swan Model

We extend the Salter-Swan model to include both factor markets and semi-traded goods. In our model, changes in relative factor prices depend on changes in world commodity prices, factor endowments, and the trade balance. In contrast, only changes in world commodity prices can affect factor prices in the neoclassical trade model. The inclusion of semi-traded goods weakens the magnification effect in both the Stolper-Samuelson and Rybczynski theorems. When imports and domestic goods are poor substitutes, a characteristic of some commodities in developing countries, the sign of the Stolper-Samuelson theorem is reversed.     

post-war economics' dead end (part 1)

In the first of two articles Sir Alfred Sherman, advisor to Conservative leaders in the 1970s and 1980s and a founder of the Centre for Policy Studies, claims that post-war economics has reached a dead-end.     

Book reviews

Abstract

This article examines the cultural field of fitness as a network of producers, consumers, products and practices that has developed around the care of the body through physical exercise. Drawing on a thematic text analysis of US exercise manuals, the paper focuses on how the commercial fitness field naturalizes associations between physical exercise and leisure, and between leisure and self‐work. In particular, the analysis examines three themes and their relevance to our broader understanding of leisure in contemporary consumer society: the management of leisure time; the use of leisure for self‐investment strategies; and the promotion of consumption as the framework for leisure and an accompanying notion of pleasure. The fitness field casts light on how leisure more generally is constructed as a sphere of obligations to make productive use of one’s time, to improve one’s body and self, and to do so through the wares of the consumer marketplace. The cultural imaginary of leisure as a time of freedom from work and responsibility is thus recast, in an age of individualization, as a time of freedom to accomplish the work of self‐production.     

A Note on Trading Stamp Strategy

A Special class of promotions where the consumer is invited to play a game, receive trading stamps or accept gifts has continually elicited reactions from economists, congressional investigators and certain consumer groups. Furthermore, many of these promotions are condemned by their originators, yet they persist! I submit that our ability to effectively treat the problem has been limited by a lack of theoretical understanding of the fundamental causes and features that underlie such promotions. This paper is an attempt to provide a general theory of these cases which I have titled the oligopolistic ‘lock-in’.

Government intervention may often be necessary for the dissolution of the ‘lock-in’, but while firms may wish to free themselves from its grip, unfavorable publicity from such intervention has historically forced them to defend the status quo. In such cases, an ounce of prevention is worth a pound of cure: if managers in industries where the ‘lock-in’ can exist understand the phenomenon, they can (hopefully) avoid its dilemma. Likewise, economists concerned with the public policy aspects can treat the causes rather than the symptoms.     

Safeguarding Children: Ofsted and Regulatory Failure

This article analyses two aspects of the regulatory conduct of Ofsted in protecting children from abuse by strangers. The first concerns the problems associated with child protection and safeguarding in the context of facilitating multicultural norms whereby certain social behaviours which would be unacceptable in one culture can be tolerated or condoned in another. The second aspect arises because, following Ofsted's failure to protect thousands of children from child abuse in many UK cities, children's social services' departments may have adopted strategic behaviour which may protect them rather than the children.     

The benefits of non-radial vs. radial super-efficiency DEA: an application to burden-sharing amongst NATO member nations

Using radial super-efficiency data envelopment analysis (DEA) has improved the discriminating performance across efficient decision-making units (DMUs). This paper extends the super-efficiency approach to a non-radial super-efficiency DEA (NRSE-DEA) index. NRSE-DEA is shown to be invariant to units of input (output) measurement. NRSE-DEA is illustrated here via an application to NATO burden-sharing assessment in which the DMUs are the member nations of NATO. The NRSE-DEA provides additional insights into the ranking of efficient countries, suggesting which are absorbing a particularly large share of NATO responsibilities. The NRSE-DEA generates a smaller set of efficient DMUs. This, in turn, provides more discriminatory power, a more accurate measure of super-efficiency, a more meaningful ranking of the efficient burden sharing countries, and a more reliable assessment of contributions by NATO members, amongst other policy issues.     

Updating and Estimating a Social Accounting Matrix Using Cross Entropy Methods

The problem in estimating a social accounting matrix (SAM) for a recent year is to find an efficient and cost-effective way to incorporate and reconcile information from a variety of sources, including data from prior years. Based on information theory, the paper presents a flexible 'cross entropy' (CE) approach to estimating a consistent SAM starting from inconsistent data estimated with error, a common experience in many countries. The method represents an efficient information processing rule-using only and all information available. It allows incorporating errors in variables, inequality constraints, and prior knowledge about any part of the SAM. An example is presented, applying the CE approach to data from Mozambique, using a Monte Carlo approach to compare the CE approach to the standard RAS method and to evaluate the gains in precision from utilizing additional information.