公共采购与企业: 来自肯尼亚的证据
Public procurement and firms: Evidence from Kenya
Journal of Development Economics · 2025 · [{"name": "Justice Tei Mensah", "affiliation": ["World Bank"]}, {"name": "Peter Wankuru Chacha", "affiliation": ["International Monetary Fund"]}, {"name": "Benard Kipyegon Kirui", "affiliation": ["Higher School of Privatization and Entrepreneurship"]}]
中文摘要
政府业务对发展中经济体私营部门的重要性有多大？我们利用肯尼亚企业间交易的行政税收数据，考察企业成为政府承包商对其绩效的影响。采用事件研究设计，我们发现企业成为政府实体供应商后获得了显著收益：四年后，受益企业的生产率提高了27%，雇佣人数增加了10%。这些效应在一定程度上可与加入跨国公司供应链所带来的收益相媲美。受益企业还将其交易网络扩展至其他私营企业。放松信贷约束和提高抵御冲击的韧性，可能是其中发挥作用的传导渠道。这些发现凸显了提高公共采购效率所可能带来的潜在福利收益。
Abstract
How important is government business to the private sector in developing economies? We use administrative tax data on firm-to-firm transactions in Kenya to examine the effects of becoming a government contractor on firm performance. Using an event study design, we document significant gains from becoming a supplier to a government entity. Four years later, beneficiary firms experience a 27% increase in productivity and employ 10% more. These effects are somewhat comparable to the gains from joining a multinational supply chain. Beneficiary firms also expand their trading networks to other private firms. Relaxing credit constraints and improving resilience to shocks are likely operative channels of impact. These findings highlight the potential welfare gains from improving efficiency in public procurement.