Many firms in developing countries could be too small to adopt modern technology embodied in expensive production machines. This paper shows that rental market interactions allow these small firms to increase their effective scale and mechanize production. We conduct a survey of manufacturing firms in Uganda, which uncovers an active rental market for large machines between small firms in informal clusters. We then build an equilibrium model of firm behavior and estimate it with our data. We find that the rental market is quantitatively important for mechanization and productivity since it provides a workaround for other market imperfections that keep firms small. The rental market also shapes the effectiveness of development policies to foster mechanization, such as subsidies to purchase machines. Overall, our results point to the importance of taking into account firm‐to‐firm interactions within informal clusters to understand technology adoption in low income countries: focusing on the small scale of firms in isolation might be misleading.

Abstract We leverage the high degree of worker mobility across production lines in a large Indian manufacturer to estimate the sorting of workers to managers, using data on daily worker productivity. We find negative assortative matching (NAM): better workers tend to be matched with worse managers. Estimates of the production technology, however, reveal that productivity would increase by up to 4% under positive sorting. Exploiting a survey of managers and data on orders from multinational brands, we document that NAM arises, at least partly, because maintaining valuable relationships with buyers provides strong incentives to avoid delays on any given production line.

There are 420 million young people in Africa today, and only one in three has a regular salaried job. We study how two common labor market interventions—vocational training and matching—affect the job search behavior of young workers. We do so by means of a field experiment tracking young job seekers for 6 years in Uganda’s main cities. Vocational training amplifies the job seekers’ initial optimism, leading them to search more intensively and toward high-quality firms. Adding matching has the opposite effect, plausibly because of low callback rates. These differences affect labor market outcomes in the long run.

We design a labor market experiment to compare demand‐ and supply‐side policies to tackle youth unemployment, a key issue in low‐income countries. The experiment tracks 1700 workers and 1500 firms over four years to compare the effect of offering workers either vocational training (VT) or firm‐provided training (FT) for six months in a common setting where youth unemployment is above 60%. Relative to control workers, we find that, averaged over three post‐intervention years, FT and VT workers: (i) enjoy large and similar upticks in sector‐specific skills, (ii) significantly improve their employment rates, and (iii) experience marked improvements in an index of labor market outcomes. These averages, however, mask differences in dynamics: FT gains materialize quickly but fade over time, while VT gains emerge slowly but are long‐lasting, leading VT worker employment and earning profiles to rise above those of FT workers. Estimating a job ladder model of worker search reveals the key reason for this: VT workers receive significantly higher rates of job offers when unemployed, thus hastening their movement back into work. This likely stems from the fact that the skills of VT workers are certified and therefore can be demonstrated to potential employers. Tackling youth unemployment by skilling youth using vocational training pre‐labor market entry therefore appears to be more effective than incentivizing firms through wage subsidies to hire and train young labor market entrants.