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.

2019
Meager, R.

In this paper, meager jointly estimates the average effect and the heterogeneity in effects across seven studies using Bayesian hierarchical models.

2019
Bapna, S., Ganco, M., and Qiu, L.

User entrepreneurs are responsible for the most important innovations in many industries, but little research has explored the performance of firms founded by user entrepreneurs. While user entrepreneurs have a deep knowledge of customer needs that facilitates the identification of innovative solutions, they tend to lack the relevant business knowledge (e.g., market, production, operational and organizational) to successfully exploit opportunities and grow their ventures.

2019
Muehlfeld, K., Rigtering, C., Weitzel, U.

Individual-level opportunity recognition processes are vital to corporate entrepreneurship. However, little is known regarding how managerial communication impacts the effectiveness of idea suggestion systems in stimulating individuals' participation in intrapreneurial ideation. Integrating self-determination theory, creativity, and framing research, we theorize how different ways of inviting employees to submit proposals (opt-out/opt-in registration; provision of examples) affect the number and quality of submitted ideas.

2018
Graff Zivin, J., Lyons, E.

Existing theories and empirical research on how innovation occurs largely assume that innovativeness is an inherent characteristic of the individual and that people with this innate ability select into jobs that require it. In this paper, we investigate whether people who do not self-select into being innovators can be induced to innovate, and whether they innovate differently than those who do self-select into innovating.

2018
Anderson, S.J., , Bilal Z., Chandy, R.

This paper examines the impact of improvements in marketing skills relative to finance skills among small-scale entrepreneurs. It addresses three important questions: (1) What is the impact of marketing or finance skills on business profits? (2) How do improvements in marketing and finance skills respectively affect different business outcomes? (3) When are increases in marketing relative to finance skills more beneficial?

2018
Ebert, C., Prabhu, J., KC, R.

This study explores how individuals develop habitual perspectives from repetitive tasks they enact over time, and how these deeply ingrained habits of perspective influence creativity. Further, this study proposes that habits of perspective are resistant to the creativity-stunting effect of financial incentives.

2018
Brooks, W., Donovan, K., Johnson, T., R.

We use a randomized controlled trial to demonstrate that inexperienced female microenterprise owners in a Kenyan slum benefit from mentorship by an experienced entrepreneur in the same community. Mentorship increases profits by 20 percent on average with initially large effects that fade as matches dissolve. We conduct a formal business education intervention, which has no effect on profits despite changes in business practice.

2018
Iacovone, L., Maloney, W., McKenzie, D.

Differences in management quality are an important contributor to productivity differences across countries. A key question is then how to best improve poor management in developing countries. We test two different approaches to improving management in Colombian auto parts firms. The first uses intensive and expensive one-on-one consulting, while the second draws on agricultural extension approaches to provide consulting to small groups of firms at approximately one-third of the cost of the individual approach.

2018
McKenzie, D., Pouliquen, V., Benhassine, N., Santini, M.

Examines a program in Benin that drastically reduces costs to formalize a business, while also offering tax mediation and training. Results forthcoming.

2018
Dalton, P., Pamuk, H., Ramrattan, R., van Soest, D., Uras, B.

What determines the adoption of electronic-payment instruments? Do these instruments impact business outcomes, in particular access to finance? To shed light on these questions, we conducted a Randomized-Controlled-Trial with Kenyan SMEs. Our experiment released barriers to adopt a novel payment instrument. We uncover that the adoption barriers were binding for a large portion of the firms and that firms' financial transparency interacted with the decision to adopt. After sixteen months, treated businesses were more likely to feel safe and had more loans.

2018
Barsoum, G., Crépon, B., Gardiner, D., Michel, B., Parienté, W.

This trial measures the impact of an edutainment program specifically designed to promote entrepreneurship among young adult viewers in Egypt.

2018
Dalton, P., Zia, B., Rüschenpöhler, J., Uras, B.

This paper studies whether small-scale businesses can learn and adopt protable practices of their successful peers. We identify such practices through a detailed business survey in urban Indonesia and disseminate the information to a randomly selected sample of small retailers through a professionally developed handbook. An orthogonal subgroup is provided additional support through business role models, and another through individualized business counseling. We find a significant increase in the adoption of profitable practices in all sub-groups of retailers.

2018
Kim, H.

This project aims to understand how increased access to competitor information enabled by digitization affects the strategic decisions and performance of firms.

2018
Martínez A., C., Puentes, E., Ruiz-Tagle, J.

We investigate the impact of a program providing asset transfers and business training to low income individuals in Chile, and asked whether a larger asset transfer would magnify the program's impact. We randomly assigned participation in a large scale, publicly run micro-entrepreneurship program and evaluated its effects over 45 months. The program improved business practices, employment, and labor income. In the short run, self-employment increased by 14.8/25.2 percentage points for a small/large asset transfer.

2018
Thompson, N., Hanley, D.

As the largest encyclopedia in the world, it is not surprising that Wikipedia reflects the state of scientific knowledge. However, Wikipedia is also one of the most accessed websites in the world, including by scientists, which suggests that it also has the potential to shape science. This paper shows that it does. Incorporating ideas into Wikipedia leads to those ideas being used more in the scientific literature.

2018
Aghion, P., Bechtold, S., Cassar, L., Herz, H.

We design two laboratory experiments to analyze the causal effects of competition on step-by-step innovation. Innovations result from costly R&D investments and move technology up one step. Competition is inversely measured by the ex post rents for firms that operate at the same technological level, that is, for neck-and-neck firms. First, we find that increased competition leads to a significant increase in R&D investments by neck-and-neck firms.

2018
Lafortune, J., Riutort, J., Tessada, J.

Using a randomized experiment in Chile we study the impact role models have in the context of a training program for micro-entrepreneurs. We show that being in a group randomly chosen to be visited by a successful alumnus of the program increases household income one year after, mostly due to increased business participation and business income.

2018
Bechthold, L., Rosendahl Huber, L.

This study draws on social learning theory and research concerning role model effects to understand how exposure to female entrepreneurial role models influences the development of entrepreneurial self-efficacy, attitudes and intentions among female students. We present results from a field experiment including data from 547 students and 98 entrepreneurs.

2018
McKenzie, D., Cusolito, A. P., Dautovic, E.

Many innovative start-ups and small and medium-size enterprises have good ideas, but do not have these ideas fine-tuned to the stage where they can attract outside funding. Investment readiness programs attempt to help firms to become ready to attract and accept outside equity funding through a combination of training, mentoring, master classes, and networking.

2018
Shamdasani Y., Kaur S., Breza, E.

Effects of relative pay on effort and labour supply are being examined in the context of an Indian manufacturing plant where co-workers' wages are exogenously varied. Results forthcoming.

2018
Barham, B.L., Chavas, J.P., Fitz, D., and Schechter, L.

We construct a model of technology adoption with agents differing on two dimensions: their cognitive ability and their receptiveness to advice. While cognitive ability unambiguously speeds adoption, receptiveness to advice may speed adoption for individuals with low cognitive ability, but slow adoption for individuals with high cognitive ability. We conduct economic experiments measuring US farmers' cognitive ability and receptiveness to advice and examine how these characteristics impact their speed of adoption of genetically modified (GM) corn seeds.

2017
Eesley, C., Wu, L.

Entrepreneurial activity is an important source of innovation in information technology products and services. Prior literature suggests that IT innovators should be agile, adaptive, willing to change direction frequently, and acquiring the necessary resources to facilitate the change. Social networks have been suggested as essential for acquiring information and resources and therefore in facilitating the venture development process.

2017
Brudevold-Newman, A., Honorati, M., Jakiela, P., Ozier, O.

This study presents results from a randomized evaluation of two labor market interventions targeted to young women aged 18 to 19 years in three of Nairobi's poorest neighborhoods. One treatment offered participants a bundled intervention designed to simultaneously relieve credit and human capital constraints; a second treatment provided women with an unrestricted cash grant, but no training or other support.

2017
Atkin, D., Khandelwal, A., Osman, A.

In the context of rug-making in Egypt, the opportunity to export provides evidence that learning-by-exporting occurs, and can lead to production quality and cost improvements.

2017
Atkin, D., Chaudhry, A., Chaudry, S., Khandelwal, A.

This article studies technology adoption in a cluster of soccer-ball producers in Sialkot, Pakistan. We invented a new cutting technology that reduces waste of the primary raw material and gave the technology to a random subset of producers. Despite the clear net benefits for nearly all firms, after 15 months take-up remained puzzlingly low.

2017
Banerjee, A., V., Breza, E., Duflo, E., Kinnan, C.

Can improved access to credit jump-start microenterprise growth? We examine subjects in urban Hyderabad, India, six years after microfinance–an intervention commonly believed to lower the cost of credit and spark business creation–was randomly introduced to a subset of neighborhoods. We find large benefits both in business scale and performance from giving “gung-ho entrepreneurs” (GEs)–those who started a business before microfinance entered–more access to microfinance. Notably, these effects persist two years after microfinance was withdrawn from Hyderabad.

2017
Clingingsmith, D., Shane, S.

Accredited investors finance more than 75,000 U.S. startups annually. We explain how training aspiring entrepreneurs to pitch their new business ideas to these investors affects their odds of continued funding discussions. We model accredited investors’ decision to continue investigation as a real option whose value is a function of their experience and the information contained in the entrepreneurs’ pitches. We derive four hypotheses from the model, which we test through a field experiment that randomly assigns pitch training at four elevator pitch competitions.

2017
Eesley, C., Wang, Y.

How do different sources of social influence impact the likelihood of entrepreneurship? We examine this question in the setting of an entrepreneurship class in which students were randomly assigned to receive mentorship from either an entrepreneur or a non-entrepreneur. Using a longitudinal field experiment with a pre-test/post-test design, we find that randomization to an entrepreneur mentor increases the likelihood of entrepreneurial careers, particularly for students whose parents were not entrepreneurs.

2017
Campos, F., Frese, M., Goldstein, M., Iacovone, L., Johnson, H. C., McKenzie, D., Mensmann, M.

Standard business training programs aim to boost the incomes of the millions of self-employed business owners in developing countries by teaching basic financial and marketing practices, yet the impacts of such programs are mixed. We tested whether a psychology-based personal initiative training approach, which teaches a proactive mindset and focuses on entrepreneurial behaviors, could have more success.

2017
Catalini, C., Tucker, C.

In October 2014, all 4,494 undergraduates at the Massachusetts Institute of Technology were given access to Bitcoin, a decentralized digital currency. As a unique feature of the experiment, students who would generally adopt first were placed in a situation where many of their peers received access to the technology before them, and they then had to decide whether to continue to invest in this digital currency or exit. Our results suggest that when natural early adopters are delayed relative to their peers, they are more likely to reject the technology.

Pages