We examine optimal taxation and social insurance if insurance markets are imperfect. This requires the development of a theory of labor supply under uncertainty. We show that the case for social insurance is not generally reinforced by adverse selection in insurance markets as social insurance will have welfare-decreasing effects on the labor market. Furthermore, positive and normative implications ...
This note explores the relationship between the price elasticity of demand and the R&D intensity of the product. We introduce the concept of R&D intensity into a standard Dixit-Stiglitz/Krugman-type setting. R&D activity is treated as a fixed cost of production. Within this framework, sectors with a higher R&D intensity show a lower price elasticity of demand. This proposition is confirmed by an empirical ...
Wir diskutieren eine Reihe von Problemen der Rentenformel in der deutschen gesetzlichen Rentenversicherung (GRV). Wir zeigen, dass Bev¨olkerungsgruppen mit ¨uberdurchschnittlicher Lebenserwartung, insbesondere die besser Verdienenden, von den ¨ubrigen Versicherten subventioniert werden, da die Rentenformel Unterschiede in den gruppenspezifischen Lebenserwartungen nicht ber¨ucksichtigt. Außerdem f¨uhrt ...
This study examines income mobility amongst older people in Great Britain and Germany after retirement. The motivation is that older people may be subject to greater income risks in today's environment of early exits from the labour force, rising longevity and increasing reliance on private pension income. Our results provide evidence that income mobility amongst older people is more pronounced in ...
After the collapse in early transition years, saving rates in Eastern European EUaccession countries have recovered strongly. Is private saving in these countries now driven by the same forces as in the EU? A GMM estimator is applied to analyze the determinants of private saving in both country groups. Main results are: saving rates are persistent; income growth increases saving, whereas public saving ...
This article deals with income advantages derived from owner-occupied housing and their impact on the personal income distribution. Using micro-data from the British Household Panel Study (BHPS), the German Socio-Economic Panel (SOEP), and the U.S. Panel Study of Income Dynamics (PSID) we find distinct cross-national differences in terms of the prevalence and extent of imputed rent. Results from inequality ...
After the collapse in the early years of transition, saving rates in many EU-accession countries have recovered and remained stable during recent years. This may indicate that the transformation process has come to an end with regard to savings. Is saving behaviour in EU-accession countries now driven by the same forces as it is in market economies? We use a panel data set covering the years 1990 to ...
