Medicaid coverage expansions and liability insurance

Do changes in the population covered by health insurance affect liability insurers, who compensate billions of dollars in medical claims each year? We examine this question by exploiting the selective rollout across states of Medicaid expansions under the Affordable Care Act. Using data on insurer losses across a range of insurance lines, and employing a triple‐difference research design that contrasts states, years, and lines of insurance, we demonstrate that coverage expansions reduce auto liability and workers’ compensation outlays by 6–11 percent, but do not measurably impact other lines of insurance. Our analysis provides some of the first evidence regarding the use of the tort system particularized to the low‐income population and is the first to consider the impacts of health insurance on medical professional liability and commercial auto insurance claims.     

Competition and public high school performance

Increasing the level of school competition has been suggested as a way to improve school performance. This study examines one of the most extreme examples of such reform using data from New Zealand public high schools. In the 1990s school zoning was abolished in New Zealand and public schools competed for students, not just with private schools, but also with each other. A categorical Data Envelopment Analysis model using data on school resources and student academic performance, stratified using student socio-economic characteristics, is used to calculate efficiency scores for schools. A regression model is then used to analyse differences in these efficiency scores and their relationship to different levels of competition.     

Moving from basic offerings to value-added solutions: Strategies, barriers and alignment

Commoditization erodes the competitive differentiation of companies and often leads to a profit squeeze. Existing literature recommends the transition from basic product offerings to service-based value concepts in order to regain competitiveness in such a context. This paper explores the concrete efforts of suppliers in the commoditized electro-technical industry to create new non-price-based customer value. In this paper, a taxonomy of efforts is developed which builds on the competitive strategy and strategic marketing literature. Our research identifies barriers to the market introduction of these new value concepts. Observations in this industry lead to a framework that (1) proposes alternative step-by-step strategies for making the transition from basic products to service-based solutions, and (2) offers alignment suggestions for overcoming identified barriers. Migration paths to introducing new service-based value concepts are incremental rather than radical, and managers should complement their market approach with (a) value chain actions to create multilevel industry support and (b) an organizational alignment approach.     

The impact of sectoral shifts in investment on unemployment in U.S. labor markets

Capital stock data for the U.S. economy are used to develop a measure of sectoral shifts in productive resources. Within the context of the creative destruction process, this measure provides a direct indicator of sectoral shifts in resource demands independent of aggregate fluctuations. Years with greater reallocations of capital have higher unemployment, a result consistent with the traditional sectoral shifts hypothesis. However, fluctuations in unemployment appear to be more strongly influenced by aggregate rather than sectoral shocks. Significant variation exists across demographic groups in the responsiveness of unemployment to aggregate fluctuations and sectoral shifts. The adverse impact of sectoral shifts is greater for males and members of the nonwhite labor force.     

Substitute goods, auctions, and equilibrium

This paper identifies two notions of substitutes for auction and equilibrium analysis. Weak substitutes, the usual price-theory notion, guarantees monotonicity of tâtonnement processes and convergence of clock auctions to a pseudo-equilibrium, but only strong substitutes, which treats each unit traded as a distinct good with its own price, guarantees that every pseudo-equilibrium is a Walrasian equilibrium, that the Vickrey outcome is in the core, and that the “law of aggregate demand” is satisfied. When goods are divisible, weak substitutes along with concavity guarantees all of the above properties, except for the law of aggregate demand.     

Like father, like son? A note on the intergenerational transmission of IQ scores

Using a large population-based dataset, we estimate a substantial intergenerational transmission of IQ scores; a 10% increase in father's score at age 18 is associated with a 3.2% increase in son's score. This relationship also holds true for various subpopulations.     

How firm capabilities affect who benefits from foreign technology

We explore how firm capabilities affect the diffusion of technology brought with foreign direct investment (FDI). Using a panel dataset on Indonesian manufacturers from 1988 to 1996, we measure how the productivity of differing domestic firms responds to the entry of multinational competitors. We find that firms with investments in research and development and firms with highly educated employees adopt more technology from foreign entrants than others. In contrast, firms that have a small “technology gap,” meaning that they are close to the international best-practice frontier, benefit less than firms with weak prior technical competency. This finding suggests that the marginal return to new knowledge is greater for firms that have more room to “catch up” than it is for already competitive firms.     

The short and long-run interdependencies between the Eurozone and the USA

We estimate quarterly cointegrating vector autoregressive models for the Eurozone and the USA based on long-run restrictions derived from a dynamic open economy model. Three long-run relations between the Eurozone and the USA emerge: relative purchasing power parity, international interest parity and a stationary output gap between the two economies. Generalized impulse response functions show differences in the dynamic adjustment of the two economies. Due to the I(1)-characteristic of both output series and the stability conditions imposed by the long-run equilibrium relationships, shocks to the model produce level effects only, while growth rates converge to their long-run averages.

Kurzarbeit — Sinnvoller Konjunkturpuffer oder verlängertes Arbeitslosengeld?

Zusammenfassung  Zur überwindung der aktuellen Krise wird nicht nur in Deutschland das Instrument der Kurzarbeit verwendet. Es ist in Deutschland im Vergleich zu anderen L?ndern jedoch sehr gro?zügig gestaltet und wurde kürzlich sogar noch ausgeweitet. Damit besteht die Gefahr, dass nicht nur — wie beabsichtigt — bei einem vorübergehenden Arbeitsausfall Entlassungen verhindert werden, sondern notwendige strukturelle Anpassungen verz?gert werden. Wie ist die Ausgestaltung der deutschen Kurzarbeit zu bewerten? Dr. Werner Eichhorst, 40, ist stellvertretender Direktor am Institut zur Zukunft der Arbeit, IZA in Bonn; Paul Marx, 26, Dipl.-Politologe, ist dort als Doktorand t?tig. Erweiterte und aktualisierte Fassung von W. Eichhorst, P. Marx: Le ch?mage partiel, ammortisateur social de la crise?, in: Regards sur l’Economie Allemande, H. 90, S. 23–30.