Warum der frühe Ausstieg aus der finanziellen Repression lohnt

The authors argue that the attempt to reduce debt via financial repression is undermining growth and prosperity in industrialised countries. The increasing number of zombie companies and stagnating productivity growth are reminiscent of the financial repression used in the planned economies of Eastern Europe in the Cold War years. Historical evidence suggests that an exit from low interest rate policies and a return to market principles are needed to restore growth and stability.     

Is there a “true” diversity?

Jost [Jost, L., 2006. Entropy and diversity. Oikos, 113: 363-374.] recently discussed Hill's [Hill, M., 1973. Diversity and evenness: a unifying notation and its consequences. Ecology, 54: 427-431.] effective number of species and concluded by naming it the “true” diversity. In this note we comment on parts of Jost's work and argue that the true diversity is not what the name suggests.     

A linear demand system within a seemingly unrelated time series equations framework

A seemingly unrelated time series equations framework for the linear almost ideal (AID) demand system is considered. The framework is applied to a consumer demand system covering nine non-durable commodities. Within a specification where the static linear AID system is augmented by latent variables representing stochastic trends and seasonality, demand homogeneity is tested; both in each equation and in the system as a whole. Income and own-price elasticities are calculated under homogeneity restrictions. Although the homogeneous model is formally rejected by statistical tests, it performs well with respect to interpretability, parameter stability and forecasting.     

Inflation dynamics and the cost channel of monetary transmission

Evidence from vector autoregressions indicates that the impact of interest rate shocks on macroeconomic aggregates can substantially be affected by the so-called cost channel of monetary transmission. In this paper, we apply a structural approach to examine the relevance of the cost channel for inflation dynamics in G7 countries. Since firms’ costs of working capital increase with interest rates, we augment a (hybrid) New Keynesian Phillips curve by including the short-run nominal interest rate. We find significant and varying direct interest rate effects for the majority of countries, including member countries of the EMU. Simulations further demonstrate that the estimated interest rate coefficients can substantially affect inflation responses to monetary policy shocks, and can even lead to inverse inflation responses, when the cost channel is - relative to the demand channel - sufficiently strong.     

Mittelbare Diskriminierungen bei Unisex-Versicherungstarifen

The article drafts a concept for applying the prohibition of indirect gender discrimination in the specific situation of insurance tariffs. In order to reveal indirect discrimination it has to be shown that each gender is affected differently by a differentiating factor to a significant extent. The basis is a statistical comparison between the total group and the disadvantaged subgroup (among potential insurance holders). Because of Art. 5 (1) of Council Directive 2004/113/EC a statistically verifiable risk difference cannot justify indirect discriminations by itself. The provision prohibits not only direct discrimination but also the use of differentiating factors highly correlated with one gender as the correlation leads to the inclusion of a higher gender-specific risk. Therefore only distinctions which are based on the individual insurance record can be justified as their aim is to influence future behaviour. In other cases it is necessary to separate the risk difference causally linked to the differentiating factor from the incorporated gender-specific risk difference.     

Susceptibility to and impact of interpersonal influence in an investment context

This paper demonstrates the relevance of consumers’ susceptibility to interpersonal influence (CSII) in an investment context. In Study 1, a survey of individual investors, investment-related knowledge, psycho-social risks, and social needs emerge as antecedents that explain investors’ susceptibility to informational and normative influence. In turn, susceptibility to normative influences increases transaction frequency, whereas susceptibility to informational influences decreases transaction frequency. The experiments in Studies 2 and 3 indicate the impact of interpersonal influences on consumers’ investment decisions in a voluntary (free choice) and involuntary (confrontation) setting and check whether CSII moderates the impact of interpersonal influences. Consumers’ investment choices are consistently influenced by the information and opinions of others, whereas CSII only strengthens the impact of interpersonal influence in a voluntary informational setting.