Thus, the regulation of imported technology and foreign goods can potentially create long-rung run growth implications (See, e.g., Grossman and Helpman, 1992; Romer, 1990).Most empirical studies based on the new growth theories use large cross-sections of countries, for example, the United States (see e.g., Barro, 1991). However, Young (1992) emphasizes the value of examining individual country experiences: