Over the past twenty years, foreign direct investments have spurred widespread liberalization of the foreign direct investment (FDI) regulatory framework. By opening up to foreign investors and encouraging FDI, which could result in increased capital and market access, many countries have improved the operational conditions for foreign affiliates and strengthened standards of treatment and protection. By assuring investors that their investment will be legally protected with closed bilateral investment treaties (BITs) and double taxation treaties (DTTs), this in turn creates greater interest in FDI.