June 2000 - Collective action clauses raise borrowing costs for low-rated borrowers and lower them for high-rated borrowers. This result holds for all developing country bonds and also for the subset of sovereign bond issuers. It is easy to say that the International Monetary Fund should not resort to financial rescue for countries in crisis; this is hard to do when there is no alternative. That is where collective action clauses come in. Collective action clauses are designed to facilitate debt restructuring by the principals - borrowers and lenders - with minimal intervention by international financial institutions. Despite much discussion of this option, there has been little action. Issuers of bonds fear that collective action clauses would raise borrowing costs. Eichengreen and Mody update earlier findings about the impact of collective action clauses on borrowing costs. It has been argued that only in the past year or so have investors focused on the presence of these provisions and that, given the international financial institutions' newfound resolve to bail in investors, they now regard these clauses with trepidation. Extending their data to 1999, Eichengreen and Mody find no evidence of such changes but rather the same pattern as before: Collective action clauses raise the costs of borrowing for low-rated issuers but reduce them for issuers with good credit ratings. Their results hold both for the full set of bonds and for bonds issued only by sovereigns. They argue that these results should reassure those who regard collective action clauses as an important element in the campaign to strengthen international financial architecture. This paper - a product of the Development Prospects Group - is part of a larger effort in the group to analyze international capital flows. The study was funded by the Bank's Research Support Budget under the research project Pricing of Bonds and Bank Loans in the Market for Developing Country Debt. The authors may be contacted at eichengr@econ.berkeley.edu or amody@worldbank.org.