The impact of public research contracts on scientific productivity

We analyze a competitive research-oriented public program established in Spain, the Ramon yCajal Program, intended to offer contracts in public research centers to high-quality researchers.We study the effects of the Program on the ex-post scientific productivity of its recipients, relativeto unsuccessful applicants with comparable curricula at the time of application. The full sampleresults demonstrate that the Program has a positive and significant effect on the scientific impactof the recipients, as measured by the average and the maximum impact factors, but the effect onthe number of published papers is not significant. Consequently, receiving a contract does notsignificantly affect the quantity, but increases the quality, of the contract recipients' publications.This result is primarily driven by the particular relevance of experimental sciences in the Program.