Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
A country may adopt policy measures such as raising its foreign exchange reserves to better prepare for sudden reversal of international capital flows or currency attacks, which in principle should reduce financial vulnerability for its firms and the entire economy, but the beneficial effect of such policies may be partially offset by endogenous firms' decisions to take on more risks. We present a robust but previously undocumented relationship between corporate leverage and country-level foreign exchange reserve holdings. For 6610 non-financial firms in 23 emerging markets from 2000 to 2006, we show that more foreign reserve accumulation leads to higher corporate leverage. The effect is significantly greater in sectors that are intrinsically more sensitive to uncertainty. We go from correlation to causality via a two-prong instrumental variable strategy: simultaneously (1) instrumenting FX reserves by global commodity price movement, and (2) examining leverage of firms outside the commodity-sensitive sectors.