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Informal versus Formal Search: Which Yields a Better Pay?

Estimates on the effect of job contact method -- i.e., informal versus formal search -- on wage offers vary considerably across studies, with some of them finding a positive correlation between getting help from informal connections and obtaining high-paying jobs, while others finding a negative one. In this paper, I investigate the sources of discrepancies in these empirical results. Using a formal job search framework, I derive an equilibrium wage distribution which reveals that the informal search yields for some groups higher and for some others lower wages than formal search. The key result is the existence of nonmonotonicities in wage offers. Two potential sources of these nonmonotonicities exist: (i) peer effects and (ii) unobserved worker heterogeneity in terms of the inherent cost of maintaining connections within a productive informal network. The model predicts that a greater degree of unobserved heterogeneity tilts the estimates toward producing a positive correlation between informal search and higher wages, whereas stronger peer influences tend to yield a negative correlation. This conclusion informs the empirical research in the sense that identification of the true correlation between job contact methods and wage offers requires a careful assessment of the unobserved heterogeneity and peer influences in the relevant sample.

Social Interactions in Job Satisfaction

The literature documents that job satisfaction is positively correlated with worker performance and productivity. We examine whether aggregate job satisfaction in a certain labor market environment can have an impact on individual-level job satisfaction. If the answer is yes, then policies targeted to increase job satisfaction can increase productivity not only directly, but through spillover externalities too. We seek an answer to this question using two different data sets from the United Kingdom characterizing two different labor market environments: Workplace Employment Relations Survey (WERS) at the workplace level (i.e., narrowly defined worker groups) and British Household Panel Survey (BHPS) at the local labor market level (i.e., larger worker groups defined in industry x region cells). Implementing an original empirical strategy to identify spillover effects, we find that one standard deviation increase in aggregate job satisfaction leads to a 0.42 standard deviation increase in individual-level job satisfaction at the workplace level and 0.15 standard deviation increase in individual-level job satisfaction at the local labor market level. These social interactions effects are sizable and should not be ignored in assessing the effectiveness of the policies designed to improve job satisfaction.

MEASURING EARNINGS INEQUALITY: AN ECONOMIC ANALYSIS OF THE BONFERRONI INDEX

This paper studies the economic content of the Bonferroni index. The most remarkable property of the Bonferroni index is that it overweights income transfers among the poor, and the weights are higher the lower the transfers occur on the income distribution. Hence, it is a good measure of inequality when changes in the living standards of the poor are concerned. There are many problems - especially in labor economics - that fall into this category. Using a version of the assignment model, we show that the Bonferroni index can be formulated endogenously within a mechanism featuring efficient assignment of workers to firms. This formulation is useful in evaluating the interactions between the distribution of skills and earnings inequality with a special emphasis on the lower tail of the earnings distribution. Moreover, it allows us to think about earnings inequality by separately analyzing the contribution of each economic parameter.

Entrepreneurship in the Shadows: Wealth Constraints and Government Policy

I develop a dynamic model of forward-looking entrepreneurs, who decide whether to operate in the formal economy or informal economy and choose how much to invest in their businesses, taking government policy as given. The government has access to two policy tools: taxes on formal business activity and enforcement (or policing) discouraging informality. The main focus of the paper is on transitional dynamics under different initial wealth levels. Whether an initially small business will be trapped in the informal economy and remain small forever or grow quickly and become a large formal business depends on tax and enforcement policies. High tax rates accompanied by loose enforcement – which is mostly the case in less-developed countries (LDCs) – induce tax avoidance, discourage investment in formal businesses, and drive the entrepreneurial activity toward the informal sector even though the initial wealth level is high. Lowering taxes on formal activity joined with strict enforcement can help reducing the magnitude of poverty traps in LDCs.

Skill Acquisition in the Informal Economy and Schooling Decisions: Evidence from Emerging Economies

Informal jobs offer skill acquisition opportunities that may facilitate a future switch to formal employment for young workers. In this sense, informal training on the job may be a viable alternative to formal schooling in an economy with a large and diverse informal sector. In this paper, I investigate if these considerations are relevant for the schooling decisions of young individuals using panel data on 17 Latin American countries as well as micro-level data for Turkey. Specifically, I ask if the prevalence of informal jobs distort schooling attainment. I concentrate on three measures of schooling outcomes: (1) secondary education enrollment rate, (2) out-of-school rate for lower secondary school, and (3) tertiary education graduation rate. I find that the secondary education enrollment rate is negatively correlated with the size of the informal economy, while the out-of-school rate is positively correlated. This means that informal training on the job may be crowding out school education in developing countries. The tertiary education graduation rate, however, is positively correlated with the size of informal sector, which implies that a large informal economy induces college attendance for those who are more likely to succeed. Policies that can potentially affect the size of the informal sector should take into consideration these second-round effects on aggregate schooling outcomes.