The effects of price and market size variables on the investment propensities in the pulp and paper industry are analyzed. A panel of 15 European countries for the time period 1984 - 1997 is used in the regression analysis. We find that the wages, the $US/ECU$ exchange rate, the price of paper...

On normal days, the temperature decreases with altitude, allowing air pollutants to rise and disperse. During inversion episodes, a warmer air layer at higher altitude traps pollu- tants close to the ground. We show how readily available NASA satellite data on vertical temperature proles can be...

Objective: In this article, we estimate the effect of a multidisciplinary collaborationprogram on the length of sickness absence. The intention with the programwas to avoid long-term sickness absence by providing an early and holistic evaluation of the sick-listed individuals' conditions. The...

This paper estimates the effects of early interventions in the Swedish sickness insurance system. The aim of the interventions is to screen and, further to, rehabilitate sick listed individuals. We find that the early interventions – in contrast to what is expected – increase the inflow into...

This study investigates possible reasons for the gender difference in sickness absence. We estimate both short- and long-term effects of parenthood in a within-couple analysis based on the timing of parenthood. We find that after entering parenthood, women increase their sickness absence by...

This paper studies empirically the consequences of retirement on health. We make use of a targeted retirement offer to army employees 55 years of age or older. Before the offer was implemented in the Swedish defense, the normal retirement age was 60 years of age. Estimating the effect of the...

This study investigates possible reasons for the gender difference in sickness absence. We estimate both short- and long-term effects of parenthood in a within-couple analysis based on the timing of parenthood. We find that after entering parenthood, women increase their sickness absence by...

We study the effects of screening stringency in the Swedish sickness insurance system by exploiting a field experiment. The experiment was conducted on 270,000 individuals in two geographical areas with the treatment group randomized by date of birth. The screening of eligibility was reduced for...

When a treatment unambiguously defines the treatment and control groups at a given time point, its effects are usually found by comparing the two groups' mean responses. But there are many cases where the treatment timing is chosen, for which the conventional approach fails. This paper sets up...