Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
We present a multiasset dynamic portfolio balance model that is based on the maximization of an intertemporal utility function in consumption when investors operate under uncertainty, quadratic adjustment costs, and capital market regulations. We estimate the model's structural parameters on quarterly portfolio data of the German private sector. Asset demand is insensitive to return changes, although the coefficients are significant. Adjustment costs are low but highly significant, giving rise to moderate lags of adjustment. Still, existing capital controls and adjustment costs cannot explain the currently observed “home bias” in the portfolio. Overall, our results imply a strong rejection of the portfolio model.