HEALTH FACILITY CHOICE IN HIV- AND AIDS-AFFECTED HOUSEHOLDS IN TWO SOUTH AFRICAN COMMUNITIES

This paper analysed differences in the choice of health-care facility by ill individuals in human immunodeficiency virus (HIV)- and acquired immune deficiency syndrome (AIDS)-affected households in the Free State province of South Africa. Secondary education, access to medical aid and household income were significant determinants of choice as were severity and type of illness, and type of health care required. Ill persons with HIV- and AIDS-related illnesses are significantly more likely to opt for public health care, although the strength of this preference declines as household income increases. Those with severe and particularly severe HIV- and AIDS-related illness, in turn, are significantly more likely to opt for private health care, especially at higher levels of income. The public health care sector therefore is likely to remain the backbone of health-care provision to those infected with and affected by HIV and AIDS, highlighting the need for equitable access to efficient, quality public health services.     

The probability approach to general equilibrium with production

We develop an alternative approach to the general equilibrium analysis of a stochastic production economy when firms’ choices of investment influence the probability distributions of their output. Using a normative approach we derive the criterion that a firm should maximize to obtain a Pareto optimal equilibrium: the criterion expresses the firm’s contribution to the expected social utility of output, and is not the linear criterion of market value. If firms do not know agents utility functions, and are restricted to using the information conveyed by prices then they can construct an approximate criterion which leads to a second-best choice of investment which, in examples, is found to be close to the first best. We are grateful to participants in the 2006 Public Economic Theory Conference, Hanoi, the 2007 CARESS/COWLES workshop on General Equilibrium at Yale University, the 2007 SAET Conference at Kos, Greece, the NSF/NBER 2007 Conference on General Equilibrium at Northwestern University, and seminars at Rice University, the University of Southern California, Indiana University, and U.C. Davis for helpful comments. We particularly thank Jacques Drèze and David Cass for stimulating discussions, and a referee for helpful suggestions for improving the paper.     

Conducting Online Surveys

The World Wide Web (WWW) is increasingly being used as a tool and platform for survey research. Two types of electronic or online surveys available for data collection are the email and Web based survey, and they constitute the focus of this paper. We address a multitude of issues researchers should consider before and during the use of this method of data collection: advantages and liabilities with this form of survey research, sampling problems, questionnaire design considerations, suggestions in approaching potential respondents, response rates and aspects of data processing. Where relevant, the methodological issues involved are illustrated with examples from our own research practice. This methods review shows that most challenges are resolved when taking into account the principles that guide the conduct of conventional surveys.     

European Nominal and Real Convergence: Joint Process or Rival Dynamics?

Recent empirical studies have revealed that the convergence speeds of nominal and real variables are fairly different. This paper studies the temporal evolution of the mutual influence between the convergences of a nominal and of a real variable. It refers first to σ-convergence analysis. In order to compare nominal and real paths, the evolutions of the cross-sectional variances of the two variables are connected. Then, nominal and real convergence processes are studied, as reciprocally conditioned within the same system. Nominal and real convergence were negatively correlated in the 1980s, while the 1990s have been characterized by a simultaneous convergence movement.     

Different knowledge,different benefits: toward a productivity perspective on knowledge sharing in organizations

We develop a differentiated productivity model of knowledge sharing in organizations proposing that different types of knowledge have different benefits for task units. In a study of 182 sales teams in a management consulting company, we find that sharing codified knowledge in the form of electronic documents saved time during the task, but did not improve work quality or signal competence to clients. In contrast, sharing personal advice improved work quality and signaled competence, but did not save time. Beyond the content of the knowledge, process costs in the form of document rework and lack of advisor effort negatively affected task outcomes. These findings dispute the claim that different types of knowledge are substitutes for each other, and provide a micro‐foundation for understanding why and how a firm's knowledge capabilities translate into performance of knowledge work. Copyright © 2007 John Wiley & Sons, Ltd.     

What crises could teach us about complexity and systemic management: The case of the Nestucca oil spill

In this article we attempt to uncover some systemic management principles for the better management of complex issues. Taking a pragmatic approach we have expanded the case methodology proposed by John Dewey to the case study of a major crisis. By proposing that crises allow for a better apprehension of complexity, we study the changes which were carried out or not, to this day, after the 1988 Nestucca oil spill that occurred in Canada only three months prior to the Exxon-Valdez disaster. After conducting a linear and systemic analysis of the crisis, we propose that the changes institutionalized thus far spring mostly from what we call “behavioral” and “paradigmatic” learning which are weak for addressing complex issues. Proposing that 15% of the people we have interviewed where able to derive a “systemic learning” from this crisis, we suggest several unlocking strategies that allow these systemic lessons to be institutionalized.     

The OECD Better Life Initiative: How's Life? and the Measurement of Well‐Being

This paper presents the framework used by the OECD for defining and measuring well‐being, developed as part of the OECD Better Life Initiative launched in 2011. This framework measures well‐being by considering 11 dimensions covering both current material conditions and quality of life, while also recognizing the importance of taking account the sustainability of well‐being in the future. This framework has been populated with indicators for each dimension, whose selection has relied on international standards on measurement and was made in consultation with experts and National Statistical Offices of OECD countries. The paper also discusses the pros and cons of various approaches for presenting and disseminating information on multidimensional well‐being to different audiences—including the OECD Better Life Index, an interactive web tool. The paper concludes by illustrating the progress made in developing measures of well‐being and outlines the statistical agenda ahead to improve existing indicators and develop new ones.     

THE ECONOMICS OF PLASTIC BAG LEGISLATION IN SOUTH AFRICA1

In May 2003 South Africa introduced legislation intended to decrease plastic bag litter. It combined standards and price‐based economic tools in an attempt to reduce the public's demand for plastic bags. This paper analyses the short term effects of the legislation on bag demand. It also provides a background to these regulations and a theoretical overview. The assessment uses bag consumption data from four retailers, each representing a different consumer market. These are analysed, and respective price elasticities calculated. The results suggest that plastic bag demand is relatively price inelastic and imply that instruments utilising price alone, would have limited efficacy. However, the combination of standards and pricing successfully curbed plastic bag use in the short run. Further analysis suggests that the effectiveness of the legislation may be declining over time.