Heterogeneity, Job Creation and Unemployment Volatility

In this paper, I explore the impact of match-specific heterogeneity at the job creation margin on business cycle fluctuations. I show that this form of heterogeneity alone does not help to amplify labor market volatility, either under full or under asymmetric information. First, I show analytically that, under full information, heterogeneity has no first-order effect on the response of unemployment and job creation to productivity, and actually tends to dampen the response of market tightness. Then, in a series of calibrations, I show that with both full and asymmetric information, the model delivers labor market volatilities close to the representative-agent, full-information benchmark. Copyright The editors of the "Scandinavian Journal of Economics" 2008 .

Analytical Application of Complex

Ltd, (Basingstoke, Hampshire, England) was installed to provide a fully automated process for the estimation of serum thyroxine (T4) and T3 -uptake by radioimmunoassay (RIA). The T3-uptake test is a technique used for assessing unsaturated thyroxine-binding globulin capacity in serum by measuring the uptake of radioactive tri-iodothyronine (T3). in the solid-phase reagent between the radio-labelled antigen and the antigen in the sample. The amount of radio-labelled antigen bound to the solid-phase reagent is inversely proportional to the amount of antigen in the sample. As the solid-phase reagent contains ferric oxide particles, the solidphase bound antigen is retained by activated magnets and the unbound antigen removed to waste. When the magnetic field is removed, the bound radio-labelled antigen is released for measurement in a gamma counter. As the analyser is online to a laboratory computer, the results of both T4 and Ta-uptake tests on each serum sample are fed directly to the computer which then calculates the free thyroxine index (FTI) and prints the final report. The reagents for these analyses were originally purchased from Technia, however the company has ceased to operate and all kits are now supplied by Technicon. All results referred to in this paper were obtained using the latter kits. 20