Excess Commitment in R&D

Abstract

We document a form of "excess" commitment to R&D projects and examine the consequences for innovation outcomes and consumer welfare, using detailed data on pharmaceutical firms' clinical trial projects. Plausibly-exogenous delays in the completion of the preceding trial-phase, empirically uncorrelated with various project-quality measures, substantially reduce firms’ subsequent project termination propensity. This excess project commitment intensifies when the CEO has higher stock price–compensation sensitivity and is personally responsible for the project's initiation. Welfare implications are nuanced: delay-driven commitment induces investment crowd-out, while not predicting increased adverse effects in marginally-launched drugs and predicting continuation of drugs for diseases lacking alternative treatments.

Keywords: R&D, (excess) commitment, consumer outcomes, welfare, healthcare, CEOs