A Dynamic-Programming Approach to Multiperiod Asset Allocation

Academicians and practitioners recently have focused a great deal of attention on the issue of retirement asset allocation. However, research on the academic side typically has assumed a static allocation of a fixed amount over the investor's lifetime, while the advice on the practitioner side has been largely ad hoc in nature. Moreover, both academics and practitioners often fail to link allocations to the individual's attitude toward risk. This paper uses several performance measures that incorporate the individual's aversion to risk and finds the allocations in the year before retirement that maximize the expected value of those performance measures. It then uses a dynamic programming procedure to roll back one year at a time to determine optimal allocations for previous years as well. We find that the traditional advice that young investors should invest more heavily in equity (with a gradual shift to more debt as they near retirement) indeed is correct, and in fact the optimal equity allocation is even higher than commonly suggested. Deviations of the growth in an individual's income from a long-term national average did not seem to significantly affect the optimal allocations. The optimal allocations, however, vary widely as a function of (1) investor attitudes toward risk and (2) accumulated savings to date. These results suggest greater care should be taken to assess and incorporate these factors into the asset-allocation decision.     

The economics of managing carbon via forestry: Assessment of existing studies

The purpose of this paper is to assess the existing studies on the economics of using forests as a means of mitigating atmospheric carbon build-up. This assessment addresses conceptual and empirical issues and provides a basis for a comprehensive and cost efficient forest management strategy. Critical needs and opportunities for future research are identified.     

Bank Regulatory Agreements and Real Estate Lending

Recent studies have found that banks with low capital ratios have significantly decreased their lending to the real estate sector. This correlation between real estate lending and bank capital could be the result of voluntary decisions by banks to recapitalize, or it could be the result of direct actions taken by bank regulators. We find that banks with low capital ratios reduce their real estate lending substantially more after formal regulatory actions have been initiated by regulators. Furthermore, this reduction in lending is particularly large for the categories of real estate borrowers most likely to be bank dependent.     

High food commodity prices: will they stay? who will pay?

Much of the public discussion of the food price crisis has focused on the sharply increased use of food commodities for biofuel production, framing debate in simple food versus fuel terms. Reality is more complex. Multiple forces drove food prices to high levels and, according to findings we report in this article, these forces will sustain high prices over the medium term. We also find that the distinction between high world prices for food commodities and the consumer costs of food is an important one to make. Food consumers do not buy raw food commodities at international prices. The degree to which the price of traded food commodities and the price of food are related depends on a long list of factors, most of which operate to dampen price transmission. In the search for appropriate policy response, it is essential to measure consumer effects correctly and to apportion properly the causes of current high prices.     

Adjusting Choice Models to Better Predict Market Behavior

The emergence of Bayesian methodology has facilitated respondent-level conjoint models, and deriving utilities from choice experiments has become very popular among those modeling product line decisions or new product introductions. This review begins with a paradox of why experimental choices should mirror market behavior despite clear differences in content, structure and motivation. It then addresses ways to design the choice tasks so that they are more likely to reflect market choices. Finally, it examines ways to model the results of the choice experiments to better mirror both underlying decision processes and potential market choices. Co-chairs. Author order is alphabetical.     

Strategies for understanding and changing local revenue policies and practices in Ghana's decentralization programme

The 1971 Local Administration Act is the basis for Ghana's attempt to decentralize development planning and budgeting from the centre in Accra to the 68 districts of Ghana. The Act allows District Councils to collect numerous revenues and to retain them as a financial base for implementing District development projects. In 1977 the Economic and Rural Development Management training programme was initiated to help improve revenue collection and the development planning and budgeting capacity of elected officials and civil servants at the district level. Participants worked in teams to determine the potential district revenue base for decentralized development planning, to understand local behavioural patterns in the revenue collection process, and to recommend procedures for improving district revenue administration. The training programme has resulted in dramatic improvements in district government revenue policies and practices leading to a larger financial base for the funding of projects identified and designed locally. Data indicating the positive impact of the training programme for improving local revenue are provided for Techiman District.     

Racial differences in unemployment: A spatial perspective

Conclusions It has been demonstrated that racial differences in unemployment in the nation’s largest metropolitan areas are widespread. The differences tend to vary, however, by region with the greatest difference occurring in the metropolitan areas of the North-Central region and the least difference occurring in the metropolitan areas in the West.