IGL Trials Database

IGL curates a database with randomised controlled trials in the field of innovation, entrepreneurship and growth. Browse our list of topics, see it as a map, or use the search function below.

Bloom, N., Eifert B., Mahajan, A., McKenzie, D., Roberts J.

This management-focused consultancy intervention in the Indian textile industry showed positive impact on overall firm productivity through improved quality, efficiency and reduced inventory, and the effects of the experiment appeared to continue over time.

Shue, K.

Using the historical random assignment of MBA students to sections at Harvard Business School (HBS), I explore how executive peer networks can affect managerial decision making. Within an HBS class, firm outcomes are significantly more similar among graduates from the same section than among graduates from different sections, with the strongest effects in executive compensation and acquisitions strategy. I demonstrate the role of ongoing social interactions by showing that peer effects are more than twice as strong in the year following staggered alumni reunions.

Sonobe, T., Suzuki, A., Otsuka, K., Nam Vu, H.

In the context of knitwear and rolled steel clusters in Vietnam, preliminary short-run impacts of KAIZEN production training reveal positive impacts on entrepreneurs' management knowledge, firms business practices, and willingness-to-pay for the training. Researchers will evaluate the long-run results including a cost-benefit analysis.

Cadena, X., Schoar, A., Cristea, A., Delgado-Medrano, H.M.

In the context of a commercial lending bank in Colombia, a behaviourally-sensitive incentive scheme led to significantly positive effects on performance and worker well-being, and results suggest that incentives alone were not sufficient to help overcome prior performance and worker well-being issues.

Dohmen, T., Armin, F.

In this lab experiment intended to recreate sorting into jobs and productivity in those jobs within the labour market, there is stong evidence of multidimensional sorting, including gender, risk attitudes, and productivity. Therefore, firms should consider both effort effects and the self-selection of different types of workers.

Valdivia, M.

In the context urban Sri Lanka the challenge in getting female-owned, subsistence-level microenterprises to grow may lie outside the realm of capital and skills. Results of the training and capital access intervention are somewhat more encouraging in terms of helping women who are outside the labour force to start enterprises more quickly.

Bandiera, O., Barankay, I., Rasul, I.

In the context of a fruit producer in the UK, social connections increase productivity of connected workers, but their effect on the allocation of managerial effort hinders firm productivity under fixed wages. Thus managerial behaviour is shaped by both social connections with subordinates and monetary incentives. In this setting, it is in the firm's best interest to foster social ties between management and workers, but to introduce monetary incentives to achieve an efficient interplay between social relationships and incentives.

Bandiera, O., Barankay, I., and Rasul, I.

In the context of a fruit producer in the UK, the introduction of managerial incentives provides evidence of positive effects on worker productivity. In this context, when managers' pay is linked to the firm's performance, their interests become more aligned with those of the firm, which ultimately translates into stronger alignment of incentives of the workers they manage since the managers can target their efforts to specific workers. This also sheds some light on how managerial incentives determine earnings inequality among workers.

Nagin, D., Rebitzer, J., Sanders, S., Taylor, L.

In the context of a call centre, behavioural heterogeneity observed through employees shirking when reduced monitoring is introduced has important implications for the design and management of reward systems. Management needs to balance monitoring strategies needed to regulate opportunistic employees with strategies needed to sustain the motivation of the substantial fraction of employees disinclined to shirk.

Camerer, C. and Lovallo, D.

In the context of a lab experiment intended to mimick market entry decisions, overconfidence leads to the neglect of the quality of competition. When post-entry payoffs are based on individual abilities, individuals tend to overestimate their chances of relative success and enter more frequently. Surprisingly, overconfidence is even stronger when individuals' self-select into the experimental sessions knowing their success will depend partly on their skill.