2014年-世界发展银行全球_Effects_of_Colombias_Social_Protection_System_on_Workers_Choice_between_Formal_and_Informal_Employment_21页_340kb

Summary of "Effects of Colombia's Social Protection System on Workers' Choice between Formal and Informal Employment"

Core Content

This paper investigates the impact of Colombia's expansion of public health insurance through the Subsidized Regime (SR) on workers' choice between formal and informal employment. The authors use two datasets and multiple identification strategies to analyze whether the SR created perverse incentives for informality by reducing the cost of health insurance for eligible workers.

Main Findings

• SR Expansion and Informal Employment: The expansion of the SR in the early 1990s is associated with a 4 percentage point increase in informal employment. This corresponds to 8% of the labor force not entering the formal sector and a 11% increase in government health expenditures.
• Empirical Strategy: The study exploits municipality-level variation in the timing of SISBEN interviews, which were used to determine SR eligibility. This variation helps isolate the effects of the SR from other national-level reforms.
• Robustness: The findings are confirmed using an individual-level panel dataset from the first and second SISBEN, with consistent results across different specifications and robustness checks.
• Marginal Workers: The results suggest that marginal workers—those on the borderline of formal and informal employment—were most affected by the SR expansion and adjusted their employment decisions accordingly.

Key Information

Context of Informal Employment in Colombia

• Informal employment is high in Colombia and across Latin America, with an average informality rate of 51% from 1990-2005.
• Informal employment is associated with low productivity, unstable jobs, and lack of labor protections.
• However, some workers prefer informality due to greater independence, flexibility, and lower costs, especially when public health services are available at lower or no cost.

Structure of the Social Protection System

• Contributive Regime (CR): Mandatory health insurance for formal workers, covering a wide range of services including outpatient, inpatient, and maternity care.
• Subsidized Regime (SR): Designed for the unemployed poor, providing free or discounted health services (POS-S) compared to the CR (POS).
• Eligibility: Determined by a Poverty Index Score from the SISBEN questionnaire, which includes demographic and dwelling information.
• Costs and Benefits: Workers in the SR do not have to pay for health insurance, and the SR is financed through a 1% transfer from the CR and government funds.

Methodology

• Data Sources:
  • Household Survey Data: Repeated cross-sections from the Colombian Household Survey (1990–2005), covering ten largest cities.
  • Panel Data: Individual-level data from the first and second SISBEN, used to track changes in employment status over time.
• Identification Strategy:
  • Uses municipality and year fixed effects to control for macroeconomic and policy changes.
  • Compares early and late adopters of the SISBEN interviews to capture the effect of SR introduction.
  • Controls for individual and household characteristics to ensure robustness.

Results and Implications

• Informality Trends: The paper finds that informality rates declined less in early adopters compared to late adopters after the SR was introduced.
• Policy Implications: The study highlights the potential for social programs to influence labor market behavior, particularly when they reduce the cost of informal employment.
• Heterogeneous Effects: The increase in informal employment is more pronounced among households with potential beneficiaries and vulnerable members (children under 1 and elderly individuals).

Conclusion

The authors conclude that the SR expansion in Colombia likely discouraged formal employment among certain groups of workers, particularly those who could benefit from the subsidized health insurance. The results are consistent across different datasets and methodologies, reinforcing the policy relevance of understanding how social programs can affect labor market participation and formality.

Related Literature

• The paper contributes to a growing body of research on the effects of social programs on informality in Latin America.
• Similar studies in Argentina, Mexico, and Uruguay have found mixed results, but this paper is unique in its use of individual-level eligibility data and municipality-level implementation variation.
• The health sector reform in Colombia was a major policy shift, increasing health insurance coverage from below 30% to over 90%. Understanding its impact on labor market behavior is critical for policy design and evaluation.

Authors and Affiliations

• Adriana Camacho: Associated Professor, Universidad de Los Andes, and visiting researcher at the World Bank.
• Emily Conover: Assistant Professor, Hamilton College (corresponding author).
• Alejandro Hoyos: Ph.D. Student, University of Chicago.

JEL Codes

• I11: Health Care and Insurance
• I18: Health; Health Care; Health Insurance
• O17: Health; Education; Human Capital Investment