In the murine spleen, germinal centers are the anatomic sites for antigen-driven hypermutation and selection of immunoglobulin (Ig) genes. To detail the kinetics of Ig mutation and selection, 178 VDJ sequences from ...

The characteristics of data monitoring and the need for the use of data monitoring committees in clinical trials sponsored by the pharmaceutical industry differ from those of trials sponsored by government. Data monitoring ...

This paper investigates the sensitivity of Solow residual based measures of technology shocks to labor hoarding behavior. Using a structural model of labor hoarding and the identifying restriction that innovations to technology ...

The authors suggest that the rapid growth of the illegal underground economy in 1970s and 1980s has destabilized the Soviet state economy and weakened the mechanism of central planning. This hypothesis is advanced on the ...

Using 1980 Census data, the authors analyze the labor force participation of married immigrant Asian women by country of origin, compared with that of married immigrant women from Europe and Canada. The results suggest the ...

The collapse of socialism and its centrally-planned economies in the former Soviet Union and Eastern Europe has raised a host of critical questions for all concerned with the ideological future of mankind. Does this represent ...

This paper considers the properties of estimators based on numerical solutions to a class of economic models. In particular, the numerical methods discussed are those applied in the solution of linear integral equations, ...