Credit Rationing and Pass-Through in Supply Chains : Theory and Evidence from Bangladesh

We extend standard models of price pass-through across multiple layers of intermediaries in a supply chain with imperfect competition to incorporate credit rationing. To test against a standard model without credit rationing, we study the effects of a policy reform in Bangladesh's edible oils supply chain during 2011-12 which banned a layer of financing intermediaries. The standard model predicts higher pass-through of international prices to wholesale prices after the reform, while the credit rationing model predicts the opposite if the resulting credit contraction is strong enough. Evidence from a difference-in-difference estimation rejects the standard model. Our estimates imply that the regulatory effort to reduce market power of financing intermediaries ended up raising consumer prices by restricting access to credit of downstream traders