The paper deals with the competitive effects of price guarantees in a spatial duopoly where consumers can search for lower prices but have to incur hassle costs if they want to claim a price guarantee. It is shown that symmetric equilibria with and without price guarantees exist but price guarantees will have no effect on prices if search costs are low, hassle costs are high and the number of uninformed ...
We present work in progress on evaluating the employment and wage effects of social security contributions (SSC). We propose to use an equilibrium job search model allowing for extensive and intensive employment reactions, with firms also changing wages. The model naturally generates adjustment dynamics. Using firm-level data on productivity will allow us to identify to what extent productive...
This paper is a contribution to the second World Happiness Report. It makes five main points. 1. Mental health is the biggest single predictor of life-satisfaction. This is so in the UK, Germany and Australia even if mental health is included with a six-year lag. It explains more of the variance of life-satisfaction in the population of a country than physical health does, and much more than unemployment ...
According to current survey results the reconciliation of family and work is still very difficult for a lot of parents. Most parents seek to share gainful employment and family duties more equally. Yet, financial incentives often favor the conventional single- or one and a halfearner model. In a study commissioned by the Friedrich Ebert Foundation and the Hans Bockler Foundation DIW Berlin has investigated ...
Sign restrictions have become increasingly popular for identifying shocks in structural vector autoregressive (SVAR) models. So far there are no techniques for validating the shocks identified via such restrictions. Although in an ideal setting the sign restrictions specify shocks of interest, sign restrictions may be invalidated by measurement errors, data adjustments or omitted variables. We model ...
It is emphasized that the shocks in structural vector autoregressions are only identified up to sign and it is pointed out that this feature can result in very misleading confidence intervals for impulse responses if simulation methods such as Bayesian or bootstrap methods are used. The confidence intervals heavily depend on which variable is used for fixing the signs of the responses. In particular, ...
By using longitudinal data the relation between satisfaction with life and unemployment is analyzed in this study. Data used in this publication were made available by the German Socio Economic Panel Study (SOEP) at the German Institute for Economic Research (DIW Berlin), Berlin. A period from 1998-2009 is evaluated. This publication has two goals. (1) To estimate the effects of voluntary and involuntary ...
