If world capital markets were fully integrated, the higher supply of saving relative to demand would have only limited implication for the level of Thai real interest rates since savings could flow abroad to seek higher returns elsewhere. However, given certain
restrictions on foreign investments by Thai residents, it may not be possible for households to channel their savings abroad as much as they perhaps would like to. In addition, the well-known Feldstein-Horioka and the home-bias puzzles suggest that capital is often less mobile than commonly perceived.15 Thus, in explaining the level of Thai real rate of interest, domestic factors remain key.