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Modification-proof contracts boost commitment and can help overcome information problems. But when such rigid contracts are ubiquitous, they can function as social suicide pacts, compelling enforcement despite significant externalities. At the heart of the current financial crisis is a contract designed to be hyper-rigid: the pooling and servicing agreement (PSA), which governs residential mortgage securitization. The PSA combines formal, structural and functional barriers to its own modification with restrictions on the modification of underlying mortgage loans. Such layered rigidities fuel foreclosures, with spillover effects for homeowners, communities, financial institutions, financial markets, and the macroeconomy.
This Article situates PSAs in the context of theoretical and policy debates about contract rigidity, bond contract modification, and contractual bankruptcy. We propose a typology of contract rigidities, ranging from formal prohibition on amendment (formal rigidity) to extreme collective action problems (functional rigidity). We then draw on New Deal jurisprudence for strategies to overcome each kind of rigidity. These strategies include narrowly tailored legislation that renders the problem terms unenforceable on public policy grounds, administrative restructuring mandates, and special bankruptcy regimes.