Medical Insurance Coverage and Health Production Efficiency

Conventional economic theory predicts that medical insurance coverage causes an inefficient production of health because of  ex ante  and  ex post  moral hazard effects. However, no research has empirically examined the magnitude of the inefficiency. This study empirically examines the impact of medical insurance on the technical efficiency of health production at the metropolitan level. The underlying health production function allows for preventive care, curative care, and behavioral factors. Data envelopment analysis determines relative technical efficiency. The multiple regression results indicate that insurance coverage generates inefficiency but the efficiency loss appears to be relatively small on the extensive margin.     

Patent Protection and R&D with Endogenous Market Structure

In a model with endogenous number of innovating firms, we show that whether patent protection increases R&D investment is ambiguous, and depends on the market demand function and the cost of R&D. If the market size increases with number of firms, patent protection reduces R&D investment if the cost of R&D is sufficiently high, and higher product differentiation increases the possibility of lower R&D investment under patent protection. If the market size does not increase with number of firms, patent protection never reduces R&D investment. We find that welfare is lower under patent protection than under no patent protection.     

On General and Specific Transfers for Child Support in Divorce

In a post-divorce equilibrium under joint legal custody of a child the paper compares the effect of two different transfer schemes, a general purpose transfer scheme and a specific purpose transfer scheme, from non-custodial parent to the custodial parent of the child on his/her welfare. Surprisingly, it finds that the marginal effects are neutral. The result contributes to the policy framework by suggesting that the lawyers/courts can choose the two alternatives equivalently in settling the child custody cases in a post-divorce situation. The paper also characterizes such transfer schemes and proves that the schemes can never restore the child’s welfare at the ‘happy marriage’ equilibrium level.

     

Modelling risk factors for fatal pedestrian crashes in Kolkata,India

Abstract

In developing countries, pedestrian safety is an issue of major concern. Although an extensive body of literature is available on the identification of elements related to the pedestrian’s risk; the studies are primarily conducted in urban areas of developed countries. The findings from these studies may only be partially relevant to the cities of an emerging country such as India. The present study analyzes historical crash records obtained from the “Kolkata Police” and identifies the risk factors at the road network level for the hazardous corridors posing a high risk to the pedestrians. The study findings reveal that pedestrians’ fatalities at intersections are associated with a high vehicular volume, higher pedestrian-vehicular interaction, high approach speed, overtaking tendency of vehicles, certain land-use type, encroachment of footpath, inadequate sight distance, inaccessible pedestrian crosswalk, wider minor carriageway, the absence of a pedestrian signal head, and lack of enforcement. On the other hand, the models outcomes reveal that pedestrians’ fatalities at midblock road segments are associated with low pedestrian volume, high approach speed, overtaking tendency of the vehicle, encroachment of footpath, on-street parking, wider road width, certain land-use type, inadequate sight distance, insufficient lighting, and inadequate pavement markings.     

Indian business groups: Evolution and transformation

Business groups are an important constituent of many emerging economies. In this paper, we focus on the evolution and transformation of Indian business groups (IBGs) over two economic eras — pre-reform era (pre 1991) and reform era (post 1991). To this end, we analyze IBG behavior during these periods, and explain the implications of such behavior on IBG value creation. Our conceptualization of IBG dynamics utilizes the perspectives of product relatedness and institutional relatedness, and undertakes a broad review of the extant literature.

The impact of management capability on the resource-performance linkage: Examining Indian outsourcing providers

The increase in offshore outsourcing of information technology-enabled business processes has renewed scholarly attention to better understand the dynamics of service provider firms. In this study, we examine how offshore outsourcing service providers’ internal and relational resources and capabilities jointly predict their economic performance. Analysis of data collected from a sample of 105 Indian service providers suggest that rent generation from firm-specific, idiosyncratic resources is positively moderated by the level of management capability possessed by such firms. Theoretical and managerial implications of the findings are discussed and avenues of future research are offered.     

A New Method for Identifying Recombinations of Existing Knowledge Associated with High‐Impact Innovation

How existing technologies and ideas are recombined into new innovations remains an important question, particularly as the store of prior technology, art, and work expands at an increasing rate. Yet, methodologies for identifying effective recombinations remain a nascent area of research. This paper extends our previous work, which developed a network methodology for assessing a scientific article's recombinations of prior work. The methodology uses information from the entire co‐citation network of all papers recorded in the Web of Science to identify combinations of prior work that are conventional or atypical and then identifies the virtuous mix of conventional and atypical pairings associated with high impact work. Here, we summarize our prior method and findings, present new findings, and perform a case study application to the field of management science. First, the results show that despite an ever‐increasing frontier of possible new combinations of prior work, atypical combinations of prior work are becoming increasingly rare with time, while the distribution of conventional pairings is increasing with time. Second, our analyses show that with time the atypical pairings found in hit papers have a relatively stable mean rate at which they become conventional pairing. Nevertheless, the variance around the mean is growing significantly, which indicates that there is a greater tendency over time for novel pairings either to be virtually never used again or to become conventional pairings.     

Harassment, corruption and tax policy: reply

Saha [Eur. J. Polit. Econ. (2003)] has raised some points about our paper [Eur. J. Polit. Econ. 16 (2000) 75]. We herewith reply to these points.