Applied welfare analysis for consumers with commodity income

Summary The paper analyzes the relevance and validity of the economic surplus concept for consumers receiving their income in commodities. For these consumers, such as farmers in developing countries, it is shown that the measure of welfare gains or losses via the area under the Marshallian demand and supply curves may lead to a considerable error. The paper provides boundaries for the error of approximation as a function of the share of the product in the consumer's budget and the income elasticity of demand.     

Social protection and regional convergence in a European Monetary Union

This paper addresses convergence in social protection and GDP in a European Economic and Monetary Union. We evaluate the impact of recently proposed EC social minimum requirements on regional convergence within the EC. Subsequently, we analyze a system of differentiated social norms as a means of raising social protection in countries with lower social standards.     

Right-to-Work Laws: New Evidence from the Stock Market

This article is an empirical examination of whether or not stockholder wealth rises in response to passage of a right-to-work law—a state law banning union security clauses from collective bargaining agreements. Stockholder wealth rose when Louisiana passed such a law in 1976 and when Idaho did so in 1985-1986. Presumably this occurred because investors anticipated higher future profits with weaker labor unions or a lower probability of future organization. This is new evidence that such laws are more than symbolic: They hamper labor unions.     

Introducing ‘Journeys Home’

Homelessness, despite being a major social policy issue in Australia, is an area that is not well served by data. Most sorely lacking is any large‐scale panel study that follows a broad sample of persons with recent experience of homelessness and unstable housing histories. In 2010, the Australian Government set about rectifying this deficiency when it commissioned the Melbourne Institute to undertake a new panel study, now known as ‘Journeys Home’. This study draws its sample from the population of Centrelink income‐support recipients, targeting persons identified in the administrative data as having recent experience of homelessness, as well as others with similar characteristics who may be vulnerable to housing difficulties in the future. This article summarises the design of this new study and reports on fieldwork outcomes from the first two waves of data collection.     

The Relationship Among Union Membership, Facets of Satisfaction and Intent to Leave: Further Evidence on the Voice Face of Unions

This study examined the impact of union membership on employees’ intent to leave their jobs across a number of facets of satisfaction, as a further test of unions’ voice face. Among the findings were that there were significant relationships between job, compensation, benefits, working conditions, and immediate supervisor satisfaction and intent to leave one’s job for nonunion employees. In contrast, only the relationship between job satisfaction and intent to leave was significant for union employees. Finally, over the facets of satisfaction where one would expect unions to have the most influence, the relationship between intent to leave one’s job and satisfaction was greater for nonunion employees than for union employees. These results provide a great deal of support for the effect of unions’ voice face.

Bonds versus stocks: Investors’ age and risk taking

It has become increasingly popular to advise investors to relocate their funds from a primarily stock portfolio to a primarily bond portfolio as they get older. However, the well-known decision rules such as mean–variance or stochastic dominance rules are unable to explain this common practice. Almost stochastic dominance (ASD) and almost mean–variance (AMV) approaches are used to examine the dominance of stock and bond portfolios. ASD and AMV rules unambiguously support the popular practice of advising higher stock to bond ratio for long investment horizons. Hence, we provide an explanation to the practitioners’ recommendation within the expected utility paradigm.     

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.     

Inferences about the parameters of a time series model with changing variance

Summary We consider the problem of making inferences about the parameters of a time series model when there is the possibility of a discrete variance change at an unknown time point. For this we obtain the posterior distributions of the parameters and of the variance ratio.