世界银行-企业层面调查的公共采购证据：世界银行企业调查的全球统计数据和一个新的公共采购调查模块（英）-2023-75页._16mb

Summary of Evidence on Public Procurement from Firm-Level Surveys

This summary outlines key findings from the World Bank's Enterprise Surveys (WBES) on firm participation in public procurement and associated barriers. It emphasizes the use of firm-level survey data to inform evidence-based policies.

1. Global Participation Rates:

   • Approximately 18% of private firms participate in public procurement markets.
   • Small and medium-sized enterprises (SMEs) are 12 percentage points less likely to participate than larger firms, indicating disparities in market access.
   • Participation rates vary by region, with higher rates in Sub-Saharan Africa (up to 47%) and lower rates in East Asia and the Pacific (below 20%).

2. Barriers and Challenges:

   • Administrative barriers, such as complex bid preparation processes, are the most significant obstacles in Croatia, Poland, and Romania.
   • Lack of trust in procurement processes is widespread, with firms in these countries reporting bribery or unfair competition issues.
   • Geographical barriers, such as costs of providing goods outside localities, also pose challenges, particularly in Romania.

3. Evidence from Specific Countries:

   • In Croatia, administrative barriers (e.g., bid preparation effort and process length) and corruption are major concerns.
   • Poland reports the highest perception of obstacles, often linked to unfair competition and delays in payments.
   • Romania highlights geographical barriers and contract execution challenges, with SMEs facing additional hurdles.

4. Survey Design Considerations:

   • Key decisions include defining the target population (e.g., all firms vs. experienced firms), sampling strategy, and data collection mode.
   • Firm-level surveys complement administrative data (e.g., e-government procurement systems) for a comprehensive analysis.

5. Policy Implications:

   • These insights support reforms to make public procurement more efficient, transparent, and inclusive, particularly for SMEs and developing countries.
   • Further research is needed to explore policy impacts, such as preference programs for disadvantaged firms.

This evidence underscores the role of firm-level surveys in identifying system weaknesses and guiding procurement reforms.