This paper investigates the existence of an optimal debt ratio for the electronic listed firms in Taiwan, using balanced panel data for a sample of 143 selected electronics companies listed in the Taiwan Stock Exchange (TSE) from the first quarter of 1999 to the third quarter of 2004. The result shows that there is a single threshold effect of debt ratio on firm value when return on equity (ROE...

This paper studies optimal Ramsey taxation when risk sharing in private insurance markets is imperfect due to limited enforcement. In a limited commitment economy, there are externalities associated with capital and labor because individuals do not take into account that their labor and saving decisions affect aggregate labor and capital supply and wages, and thus the value of autarky. Therefor...

I quantitatively study the optimal capital income taxation in the general equilibrium overlapping generations model with uninsurable idiosyncratic income shocks and with housing and flnancial assets. Following key characteristics of housing are explicitly modeled: (i) housing is held for the dual purpose of consumption and savings, (ii) housing can be either owned or rented, (iii) if owned, hou...

In this paper I show that, in economies characterized by tax evasion and endogeneity of government spending, the qualitative characterization of the optimal factor income taxes depends on both these factors. In particular, the well known Chamley Judd result that, in the long run, tax rates on capital income should be zero is, in many cases, overturned. It is shown that the nature of tax evasion...

A major challenge in fostering online communities is developing and sustaining communities. This paper integrates social capital and group development theories in order to derive a framework that seeks to explain why some online communities prosper, while others decline and perish. Four facets of social capital – network structure, identification, obligations, and shared vision – are proposed t...