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.

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
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
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 Notably, these effects persist two years after microfinance was withdrawn from Hyderabad.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
Cai, J., Szeidl, A

A business networking programme on firm performance in China, and how groups composition and meeting frequency can facilitate trust and information flows. Results forthcoming.
 

2017
Eesley, C., Wang, Y.

How do different sources of social influence impact the likelihood of entrepreneurship? Using a longitudinal field experiment with a pre-test/post-test design, random assignment to an entrepreneur mentor of a student increases the likelihood of entrepreneurial careers, particularly for students whose parents were not entrepreneurs.

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.

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

2017
Koning, R., Hasan, S., Delecourt, S., Chatterji, A.

This paper explores whether the advice entrepreneurs receive about people management influences their firm's performance.

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.

2016
Boudreau, K., Guinan, E., Lakhani, K., Riedl, C.

This paper focuses on the evaluation of frontier scientific research projects and argues that the intellectual distance between the knowledge embodied in research proposals and an evaluator's own expertise systematically relates to the evaluations given.

2016
Boudreau, K., Lakhani, K.

Field experiments have the potential to provide unambiguous causal evidence on innovation topics while simultaneously assisting organisations with their innovation.

2016
Bulte, E., Lensink, R., Vu, N.

This trial evaluates the impact of a business training for female clients of a microfinance institution in northern Vietnam, and considers the impact on business knowledge, practices, and outcomes, as well as firm entry and exit decisions.

2016
Bechtold, S., Buccafusco, C., Sprigman, C. J.

All creativity and innovation build on existing ideas. Authors and inventors copy, adapt, improve, interpret, and refine the ideas that have come before them. The central task of intellectual property (IP) law is regulating this sequential innovation to ensure that initial creators and subsequent creators receive the appropriate sets of incentives. Although many scholars have applied the tools of economic analysis to consider whether IP law is successful in encouraging cumulative innovation, that work has rested on a set of untested assumptions about creators’ behavior.

2016
Schaner, S.

I use a field experiment in rural Kenya to study how temporary incentives to save impact long run economic outcomes. Study participants randomly selected to receive large temporary interest rates on an individual bank account had significantly more income and assets 2.5 years after the interest rates expired. These changes are much larger than the short-run impacts on experimental bank account use and almost entirely driven by growth in entrepreneurship.

2016
Gallus, J.

This natural field experiment tests the effects of purely symbolic awards on volunteer retention in a public goods context. The experiment is conducted at Wikipedia, which faces declining editor retention rates, particularly among newcomers. Randomization assures that award receipt is orthogonal to previous performance. The analysis reveals that awards have a sizeable effect on newcomer retention, which persists over the four quarters following the initial intervention.

2016
Boudreau, K., Lakhani, K., Menietti, M.

In the context of online developer tournaments this study found that added rivalry is likely to induce higher performance given that failing to exert effort will reduce the likelihood of winning a prize. Tournament organizers can leverage contest size, dividing competitors by ability, and opening entry to all, as policy tools to manipulate the performance of competitors, particularly when changes allow the reallocation of prize money.

2016
Field, E., Jayachandran, S., Pande, R., Rigol, N.

Women may face more constraints than men to becoming entrepreneurs, but are not poor entrepreneurs. A potentially important factor limiting financial inclusion efforts is inadequate peer support among many women who have potential as entrepreneurs.

2016
Åstebro, T., Hoos, F.

We use two sequential RCTs to study the impact of a twice-executed six-month intensive training program costing about 12,000 euros per participant to encourage social entrepreneurship among youth. The first year training effort provided no robust treatment effects. Results were used to redesign and improve the training. The second year effort provided treatment effects on venture actions, venture creation, one leadership characteristic, one non-cognitive skill, and on subsequent work experience in startups.

2016
Bradler, C., Dur, R., Neckermann, S., and Non, A.

In the context of a basic, short-term data entry job, unannounced provision of public recognition to employees yielded an economically significant increase in performance. Results suggest that recognition works best when it is provided exclusively, but not too exclusively. The performance increases in exclusive recognition are mainly driven by strong positive responses of non-recipients, which is most likely due to conformity preferences.

2015
Heite, J., Rosendahl Huber L., Kleine, M.

The Innovation Voucher Program analyzed in this study operates as a randomized controlled trial (RCT). This allows estimating the causal effect of the voucher on innovation and growth measures of beneficiaries, as well as their business outcomes in general. As a result, the evidence might be used to enhance voucher schemes and to provide further policy advice on how to effectively support small and medium-sized enterprises and their innovation activities in the future.

2015
Bird, M.

An online platform for contract enforcement in the Peruvian textile sector. Results forthcoming.

2015
Gertler, P.

This study aims to carry out an evaluation of the long-term impacts of an innovative school-based intervention designed to enhance the ability of youth to engage and succeed in both formal employment and entrepreneurial activities in Uganda, ultimately leading to improvements in livelihood. The findings will inform future interventions (in Uganda, Rwanda, and Kenya) to help more young people overcome obstacles to successful entrepreneurship and labor market participation, such as gender-related barriers, thereby improving their livelihoods and socioeconomic security.

2015
McKenzie, D., Maloney, W., Iacovone, L.

Examines the differential impacts of group management consulting versus individualised management consulting on firm performace in Colombia, and whether management practices are partially responsible for the gap in firm productivity in developing countries. Results forthcoming.

2015
Valdivia, M.

With millions of women around the developing world thrown into self-employment but with low productivity, increasing the profitability of their businesses is highly relevant for poverty reduction and gender equity.

2015
Rosendahl Huber, L.

This study reports on a randomized field experiment conducted in the Netherlands to estimate the (long-term) effect of a short personalized tax training program on the performance and tax compliance of first-time entrepreneurs. The tax training was expected to have an impact on business performance and different aspects of tax compliance through better financial decision making and more relevant tax knowledge.

2015
Schoar, A., Eslava, M.

In the context of SME's in Colombia, researchers are evaluating the impact on firm performance of a legal reform which will provide a framework for the use and enforcement of movable collateral. Results forthcoming.

2015
Phipps, J., Watkins, G., Johnson, A., Khan, K.

The Growth Impact Pilot, launched in April 2014, is a research project on the impact of business advice (coaching), supported by the UK Government. The Growth Impact Pilot will assess whether the provision of Growth Accelerator coaching is the reason why firms on the service achieve high rates of growth, or whether this growth would have happened anyway. It is designed to assess the impact of coaching by comparing two groups:

2015
Karlan, D., Knight, R., Udry, C.

A randomized trial was conducted in urban Ghana in which tailoring microenterprises received advice from an international consulting firm, cash, both, or neither.

2015
Iacovone, L., Mckenzie, D.

Micro-entrepreneurs in developing countries are often constraint by inefficient supply chains, facing high travel costs and high prices in purchasing their inventory. At the same time, due to their small scale, they buy in small quantities, limiting their benefit from economies of scale, whether in bulk discounts or transport efficiencies. Small-scale food vendors in Bogotá, whose customers are residents of low-income neighborhoods, face these very issues.

2015
Iacovone, L.

Programs targeting micro businesses have become increasingly common in developing countries, particularly because micro enterprises employ a substantial fraction of individuals in these economies (about 47 percent in Mexico) and because the majority of these micro enterprises tend to stay small and have low productivity Many programs aimed at fostering the growth of micro and small businesses have focused on providing credits or offering business and financial training, since access to credit and lack of managerial skills are believed to limit the success of this type of businesses (Bruhn e

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