Collateral secured loans in a monetary economy

This paper presents a microfounded model of money where durable assets serve as a guarantee to repay consumption loans. We study a steady state equilibrium where money and credit coexist. In such an equilibrium, a larger investment in durable capital relaxes the borrowing constraint faced by consumers. We show that the occurrence of over-investment and the behavior of capital accumulation depend on the rate of inflation, the relative risk aversion of agents and the marginal productivity of the capital goods.     

Rates and Biases of Technical Progress and Returns to Scale in the Multi-output, Multi-input Production: Primal Versus Dual, Output-augmenting Versus Input-saving and Long-run Versus Short-Run

I examine the relationships among various dual concepts of output-augmenting and input-saving rates of technical progress as well as various dual concepts of returns-to-scale measures in the long run and short run. Output-augmenting rates of technical progress are all equal, and so are input-saving ones. Returns to scale plays an important role in the relationship between output-augmenting and input-saving rates of technical progress. Capacity utilization plays an important role in the relationship between the long run and short run. The bias of technical progress is also briefly referred to.
L Classification Numbers: D24, O030, O047.     

Effects of international sharing of pollution abatement burdens on income inequality among countries

Improvements in environmental quality will boost output production and hence economic growth. However, although environmental abatement equally benefits all economies in the world, it is shown that, if the private productive resources are not yet accumulated sufficiently in low income economies, income inequality among economies can be widened in the short term not only under equal burden sharing of pollution abatement but even under income-proportional burden sharing. When the marginal productivity is diminishing, the negative effect of the burden is large relative to the positive effect of the improved environment in economies in which resources are not accumulated sufficiently.