Internal capital is a major source of funds for financing corporate investments. For example, Lamont (1997) estimates that for the 1981-1991 period, internal funds accounted for more than three quarters of capital expenditure outlays for U.S. non-financial corporations. This reliance on self-generated cash as a source of investment funds has prompted researchers to investigate the relationship between firms‘ investment decisions and internal resources. In a world where capital markets are perfect and all firms have free access to external sources of financing, investment decisions would be based solely on expected future profitability and, thus, not be affected by the availability of internally generated funds. In the real world, however, capital market imperfections exist, making internal funds less costly and therefore more attractive than external funds. This reliance on internal funds should be stronger for firms facing greater capital market imperfections, i.e., firms in countries where external capital markets are less developed. The interesting empirical question that arises therefore is whether corporate investments are indeed more sensitive to the availability of internal funds for firms in less developed economies. This is the question this paper addresses.
In recent years, there have been several studies examining cross-country differences in the development of financial markets and its impact on economic growth (La Porta, Lopez de Silanes, Shleifer, and Vishny (1997, 1998), Levine and Zervos (1998), Rajan and Zingales (1998), Beck, Levine, and Loayza (2000)). Starting with the seminal work of Fazzari, Hubbard,and Petersen (1988), there is also a large literature on the impact of external financing constraints on the sensitivity of investments to internal cash in a variety of domestic contexts (see, e.g., Fazzari, Hubbard, and Petersen (1988, 2000), Blanchard, Lopez-de-Silanes, and Shleifer (1994), Calem and Rizzo (1995), Gilchrist and Himmelberg (1995), Kaplan and Zingales (1997, 2000), Cleary (1999), Erickson and Whited (2000), and Houston and James (2001)).1 In view of the fact that current cash flow is likely to be positively correlated with future profitability/growth opportunities, these studies have typically used Tobin‘s q as an independent variable to control for it. While the domestic evidence on the impact of internal cash on investments is extensive, the international evidence is surprisingly sparse. Even the limited evidence that exists is mixed in nature. On the one hand, Hoshi, Kashyap, and Scharfstein (1991) and Shin and Park (1998) find that the sensitivity of investments to internal cash flow is less for Japanese and Korean firms that belong to corporate groups and thus have easier access to external capital. Similarly, Schaller (1993) finds the sensitivity to be lower for Canadian firms that are older and have more dispersed ownership. On the other hand, Kadapakkam, Kumar, and Riddick (1998) and Cleary (2001) find that in several developed countries, the sensitivity is lower for smaller and financially more constrained firms, i.e., firms for which external capital market frictions are likely to be greater. None of these studies examines the variation of investment-cash flow sensitivity across countries, however. Using cash stock as a measure of internal resources, and sales as a proxy for the marginal productivity of capital, Love (2000) finds the sensitivity to be greater for less developed countries. In a somewhat different context, Wurgler (2000) examines industry-level data and finds that investment is more sensitive to value added in countries with better developed financial markets, but is unable to distinguish between the effects of future profitability and current cash flow due to data limitations in the non-U.S. portions of his sample, which preclude measuring Tobin‘s q at the industry level.