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研发采购竞赛的实证模型:对美国国防部小企业创新研究(SBIR)计划的分析

An Empirical Model of R&D Procurement Contests: An Analysis of the DOD SBIR Program
Econometrica · 2021 · Vivek Bhattacharya

中文摘要

企业和政府经常利用研发竞赛来激励供应商开发并交付创新产品。此类竞赛的最优设计取决于实证基础要素:研究成本、结果的不确定性以及参与者获得的剩余。现实中的研发竞赛能否通过重新设计来增加社会剩余?我以美国国防部的小企业创新研究计划为背景探讨这一问题,该计划是一项多阶段研发竞赛。我构建了一个结构模型,利用研发和采购合同数据估计这些基础要素。我发现,最优设计能够大幅增加社会剩余,而单独实施简单的设计变更(例如邀请更多参赛者),就能实现最优设计所带来增益的至多一半;然而,这些变更会降低国防部自身的福利。这些结果表明,现实中的竞赛设计存在相当大的改进空间,但设计者必须在相互竞争的目标之间进行权衡。

Abstract

Firms and governments often use R&D contests to incentivize suppliers to develop and deliver innovative products. The optimal design of such contests depends on empirical primitives: the cost of research, the uncertainty in outcomes, and the surplus participants capture. Can R&D contests in real‐world settings be redesigned to increase social surplus? I ask this question in the context of the Department of Defense's Small Business Innovation Research program, a multistage R&D contest. I develop a structural model to estimate the primitives from data on R&D and procurement contracts. I find that the optimal design substantially increases social surplus, and simple design changes in isolation (e.g., inviting more contestants) can capture up to half these gains; however, these changes reduce the DOD's own welfare. These results suggest there is substantial scope for improving the design of real‐world contests but that a designer must balance competing objectives.
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