We propose a new location model where consumers are allowed to make multiple purchases (i.e., one unit from each firm). This model may fit many markets (e.g., newspapers, credit cards) better than existing models. A common feature of these markets is that some consumers are loyal to one brand,...

This paper examines the cubic form hypothesis and the flying geese pattern hypothesis of income distribution. We use time series data for the Gini coefficients of Korea for 1961-2006 and panel data calculated based on a household income survey for the period 1998-2003. We show; (1) The Korean...

This paper analyzes the effect of government subsidy policies on creating an incentive for domestic firms to improve their product quality before exporting to an outside market. The goal of the government is to minimize the time it takes to reach the appropriate product quality level at low...