
Why This Question Matters
International Monetary Fund (IMF) programs are meant to reassure global investors that a borrowing country will implement painful reforms, but investor reactions vary widely. Sujeong Shim asks why some IMF interventions calm markets while others do not, highlighting the puzzle's importance for global financial governance and debates over credible commitment.
The Central Argument
Shim argues that investors do not typically process detailed information about a government's capacity to implement IMF conditionality. Instead, they rely on a simple political cue: government popularity. Higher popularity signals stronger domestic political standing and a greater likelihood that the government will carry out IMF-mandated reforms, so investors respond more favorably to IMF programs when the borrower is politically popular.
Data and Statistical Test
The paper analyzes annual panel data from up to 52 emerging market economies for 1998–2017. Using statistical models that relate investor responses to the presence of IMF programs and measures of borrower popularity, Shim tests whether popularity conditions the financial market effects of IMF lending.
Key Findings
Implications for Policy and Scholarship
The findings suggest that the effectiveness of IMF lending depends on domestic political conditions: markets use political popularity as a heuristic for credible commitment to reform. This insight links studies of international financial governance with domestic politics and contributes to understanding when international interventions will succeed in restoring investor confidence.

| Who Is Credible? Government Popularity and the Catalytic Effect of IMF Lending was authored by Sujeong Shim. It was published by Sage in CPS in 2022. |