I develop a systematic argument about the politics of the 1997-98 Asian eco
nomic crisis. I focus on institutions-specifically, the connection linking
the institutional framework of national politics, the policy environment, a
nd investment. I seek to resolve the tension between the literatures on cre
dible policy commitment and policy flexibility, arguing that if either is s
everely undersupplied, the risk associated with the policy environment rise
s rapidly for investors. Building on a veto player framework, I develop a s
imple model of a U-shaped relationship between the number of veto players i
n a political system and policy risk to investors. Institutional vetoes on
executive authority lower policy risk for investors but only up to a point,
after which additional veto players promote unwelcome policy rigidity. I i
llustrate this using four cases: Thailand, the Philippines, Malaysia, and I
ndonesia, the four main Southeast Asian countries involved in the financial
crisis. I argue that the institutional framework of national politics had
a powerful and predictable influence on policy responses and investor react
ions.