The Evolutionary Theory of Time Preferences and Intergenerational Transfers

At each age an organism produces energy by foraging and allocates this energy among reproduction, survival, growth, and intergenerational transfers. We characterize the optimal set of allocation decisions that maximizes fitness. Time preference (the discount rate) is derived from the marginal rate of substitution between energy obtained at two different times or ages, holding fitness constant. Time preference varies with age in different ways depending on whether an individual is immature or mature, and during the transition between these stages. We conclude that time preference and discount rates are likely to be U-shaped across age.     

Forecasting future demand for large-screen television sets using conjoint analysis with diffusion model

The methodological framework proposed in this paper addresses two limitations of the basic Bass diffusion model: that it does not reflect competition among products nor does it forecast demand for products that do not exist in the marketplace. The model consists of four steps. First, to investigate consumer preferences for product attributes, we use conjoint analysis to estimate the utility function of consumers. Next we estimate the dynamic price function of each competing product to reflect technological changes and the evolving market environment. Then we derive dynamic utility function by combining the static utility function and the price function. Finally, we forecast the sales of each product using estimated market share and sales data for each period, which are derived from the dynamic utility function and from the Bass diffusion model, respectively.We apply this model to South Korea's market for large-screen televisions. The results show that (1) consumers are sensitive to picture resolution and cost and (2) in the near future, should the market see the introduction of liquid crystal display (LCD) TVs with screens larger than 50 inches, the high resolution and steep price drop of LCD will lead LCD TVs to capture a larger market share than TVs with other display types. Finally, our results show that TVs with 40-inch screens are preferred over TVs with larger screens.     

Output and Input Biases Caused by Public Agricultural Research and Extension in Japan, 1957–1997

The present paper investigates the magnitude and the Hicksian output and input biases of technological change brought about by investments in public agricultural research and extension activities in Japan. Given this objective, it estimates a translog multiproduct cost function for 1957–1997. Empirical results show that the cost reduction effects were fairly large. The Hicksian (1932) biases were found to be: (i) livestock-augmenting; (ii) labor- and other-inputs-saving; and (iii) machinery- and intermediate-inputs using. Except for other inputs, the directions of the biases are consistent with the Hicksian (1932) induced innovation hypothesis, which supports the public-sector-induced-innovation model proposed by Hayami and Ruttan (1985) and Ohtsuka (1982).     

The color of money: The effects of foreign direct investment on economic growth in transition economies

During the initial phase of transformation to a market economy many of the Eastern European and Baltic countries experienced an initial decline of output. This paper explains, both theoretically and empirically, why they experienced negative growth initially, and how some of them started to get over and recorded positive growth recently. As a vehicle to transfer technology and managerial skills to the transition economies, as well as to increase capital work, foreign direct investment (FDI) is regarded important. Production function with a low elasticity of substitution between two inputs is employed to capture the dynamic short-run movement of these economies. Cross-sectional and panel data, are utilized to analyze the short-run dynamic movement of equilibrium paths of transformation to a market economy. The findings confirm that total factor productivity and GDP in the region grew together with the inflow of FDI, and the marginal contribution of FDI to growth is greater than that of domestic investment. JEL no. O50, P39, F21 This project is financially supproted by the ARC Small Grant, Department Research Grant, Department of Economics, UWA and Division Research Grant, Commerce, Division, Lincoln University.     

What Caused the Korean Currency Crisis in 1997?*: Weak Fundamentals or Self‐fulfilling Expectations*

The present paper investigates which factor is primarily responsible for the sharp depreciation of the Korean won against the US dollar in 1997, using a bivariate vector autoregressive model of real and nominal exchange rates. In the present study, we directly identify the relative importance of fundamental and non‐fundamental factors from the raw data series on exchange rates. This approach is different from most previous studies on the Korean currency crisis, which use proxy variables to represent the two factors. The empirical results show that the collapse of the Korean currency in 1997 appears to be mostly a result of the weakened macroeconomic fundamentals of the economy with, to a limited extent, some non‐fundamental factors.