A social welfare function characterizing competitive equilibria of incomplete financial markets

A classic characterization of competitive equilibria views them as feasible allocations maximizing a weighted sum of utilities. It has been applied to establish fundamental properties of the equilibrium notion, such as existence, determinacy, and computability. However, it fails for economies with missing financial markets.We give such a characterization for economies with a single commodity and missing financial markets, by an amended social welfare function. Its parameters capture both the relative importance of households welfare, through the classic welfare weights, as well as the disagreements among them as to the value of the missing markets.As a by-product, we identify the dimension of the set of interior equilibrium allocations.     

Multinationals and human resource practices in Ireland: a rejection of the 'new conformance thesis': a reply

This paper reports on a study of 398 people employed in two UK service organizations: a hospital and two divisions of a high street bank. The main purpose of the study was to determine the degree to which dispositional factors (predisposition to trust and trait anxiety) and situational factors (seven aspects of the job environment) predicted a person's reported trust in their managers. Two types of managers were investigated: a person's immediate line manager and ‘senior managers in their industry’. It was hypothesized that the dispositional factors would have a greater influence on trust in managers in the industry and that situational factors would have a greater influence on trust in one's immediate line manager. The first hypothesis was supported, but the second was not. It was found that trust in both types of managers was best predicted by a combination of general disposition to trust (not trait anxiety) and situational factors: five of the seven situational factors had a role in predicting intention to trust. This reflects the complexity involved in predicting trust at work and the managerial challenge of creating a trusting culture.     

Can Banks Self‐Regulate? Voluntary Agreements,Intrinsic Motivation and Games

This article argues that lessons on how to achieve a sustainable financial system can be learnt from the work done on sustainable commons (on common‐pool resources – CPRs – where there is no ‘tragedy of the commons’). Existing approaches to financial regulation may not give proper attention to available solutions. The article proposes that innovative solutions could be tested using experimental methods commonly used in CPRs: repeat run, feedback driven games.     

Mitigating shortage and distribution costs in damaged water networks

Recent events have sparked renewed interest in disaster mitigation for public infrastructures. Presidential Decision Directive 63 identifies water distribution as being among the most vital and vulnerable of our large-scale infrastructures. Water distribution networks are vulnerable to threats such as chemical and biological contamination, cyber attacks on computer-based management systems, and physical destruction from acts of nature and intentional attack. This research develops methods for configuring the undamaged portion of the water network to mitigate the consequences of physical destruction. The approach is to find a hydraulically feasible residual network that can be pressurized to meet the demand of a subset of demand sectors. Demand sectors not pressurized then receive water through truck distribution from pressurized sectors. The objective is to minimize weighted water shortage and water truck distribution costs by identifying sectors to pressurize along with an assignment of unpressurized sectors to pressurized sectors for water delivery by truck. The paper develops an optimization model, describes a solution method, and presents computational results for three example networks.     

The Balance of Payments Constraint and the Post 1973 Slowdown of Economic Growth in the G7 Economies

This paper presents estimates of export and import demand functions for the G7 economies over the period 1956 to 1995 and over two sub-periods 1956-73 and 1974-95. These estimates are used to construct predictions of the equilibrium growth rates for these economies by use of the 'Thirlwall's Law' relationship. The estimates are consistent with observed cross country growth patterns over the whole sample and the post 1973 period but are less convincing in the pre 1973 sub-period. It is argued that the slowdown in economic growth after 1973 can be partly explained by the growing internationalisation of the world economy coupled with a slowdown in the overall growth of world trade.     

Modelling the Impact of Community Engagement on Local Democracy

English local authorities are expected to promote 'effective community engagement'. The ways in which they can do this are various, ranging from the provision of information to direct involvement in decision-making. This paper focuses on the impact of adopting different types of community engagement strategy on local democracy. Two principal types of community engagement strategy are identified: consumerist and participatory, and their potential for encouraging effective engagement is discussed, before their implications for local democracy are modelled. The paper argues that the relative priority accorded to different types of community engagement are likely to cause local democracy to evolve towards consumer, stakeholder, radical or citizen-centred democracy.