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This paper introduces a tractable capital market friction mechanism that allows a break of the parity between domestic and external interest rates and generates a gradual evolution of capital stock and other macroeconomic variables-in contrast to the instantaneous convergence found in models with interest rate parity. The friction, derived from explicit microfoundations, is such that the cost of new loans is an increasing function of net borrowing.
This paper uses a dynamic computable general equilibrium model to compare, in an economy open to international capital flows, the effects of two U.S. policies intended to promote domestic capital formation. The two policies -- the introduction of an investment tax credit (ITC) and a reduction in the statutory corporate income tax rate -- differ in their treatment of old (existing) and new capital. The model features adjustment dynamics, intertemporal optimization by U.S. and foreign households and firms endowed with model-consistent expectations, imperfect substitution between domestic and foreign assets in portfolios, an integrated treatment of the current and capital accounts of the balance of payments, and industry disaggregation in the United States. We find that the two policies (scaled to imply the same revenue cost) differ in their consequences for foreign and domestic welfare, the balance of payments accounts, international competitiveness, and U.S. industrial structure. The ITC produces larger domestic welfare gains because it is more effective in reducing intertemporal distortions, while the two policies have similar implications for intersectoral efficiency. From the point of view of domestic welfare, the relative attractiveness of the ITC is enhanced when international capital mobility is taken into account, a reflection of international transfers of wealth associated with foreign ownership of part of the U.S. capital stock. Whereas reducing the corporate tax rate improves the trade balance initially, introducing the ITC causes a deterioration of the trade balance in the short run. Reflecting a lower real exchange rate, export-oriented sectors perform better relative to non-tradable industries under a lower corporate tax rate than in the presence of the lTC, especially in the short run.
This paper considers the effects of fiscal and financial policy on economic growth in open and closed economies, when human capital formation by young households is constrained by the illiquidity of human wealth. Both endogenous and exogenous growth versions of the basic OLG model are analyzed. We find that intergenerational redistribution policies that discourage physical capital formation may encourage human capital formation. Despite common technologies and perfect international mobility of financial capital, the non- tradedness of human capital and the illiquidity of human wealth make for persistent differences in productivity growth rates (in the endogenous growth version of the model) or in their levels (in the exogenous growth version). We also consider the productivity growth (or level) effects of public spending on education and of the distortionary taxation of financial asset income.
This paper investigates the analytical implications of partially mobile capital among sectors arising in the context of the two-sector general-equilibrium Harris-Todaro (HT) model. It is shown that under partially mobile capital, unlike the case of totally mobile or immobile capital, labor growth (capital accumulation) may destabilize sectoral capital movement and lower the welfare of a small country if the agricultural rental rate is lower (higher) than the manufacturing rental rate. While the price-output response is always normal in a stable system, the Rybczynski type of factor endowment-output response requires more stringent conditions (vis-à-vis perfectly mobile or immobile capital case).