In this paper, meager jointly estimates the average effect and the heterogeneity in effects across seven studies using Bayesian hierarchical models.
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
This paper studies the impact of a financial education program for top managers of medium and large enterprises in Mozambique through a randomized controlled trial (RCT). We use survey data and financial reporting data to show consistent evidence that managers adjust some financial policies in response to the education program. The largest treatment effects are on short-term financial policies related to working capital, generating a positive impact on cash flows due to reductions in account receivables and inventories.
2019
A classical approach to collecting and elaborating information to make entrepreneurial decisions combines search heuristics such as trial and error, effectuation, and confirmatory search. This paper develops a framework for exploring the implications of a more scientific approach to entrepreneurial decision making. The panel sample of our randomized control trial includes 116 Italian startups and 16 data points over a period of about one year.
2018
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
Increasing evidence indicates the importance of management in determining firms’ productivity. Yet, causal evidence regarding the effectiveness of management practices is scarce, especially for high-skilled workers in the developed world. In an eight-month field experiment measuring the productivity of captains in the commercial aviation sector, we test four distinct management practices: (i) performance monitoring; (ii) performance feedback; (iii) target setting; and (iv) pro-social incentives.
2018
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
Examines a program in Benin that drastically reduces costs to formalize a business, while also offering tax mediation and training. Results forthcoming.
2018
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
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
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
This project aims to understand how increased access to competitor information enabled by digitization affects the strategic decisions and performance of firms.
2018
A management consultancy intervention in Mexico, focusing on firm growth, showed a positive impact on firm productivity in the short term and amount of employees (and overall wage bill) in the long term, as compared with the control group.
2018
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
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
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. The results presented are from a field experiment including data from 547 students and 98 entrepreneurs.
2018
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
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
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.
2018
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
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
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?
2017
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
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
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
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
This paper explores whether the advice entrepreneurs receive about people management influences their firm's performance.
2017
We present novel evidence from the results of a randomized controlled trial on the role that information plays in the perceptions of the benefits and costs of exporting. We first present results from a baseline survey of approximately 1,000 UK manufacturing firms to show that non-exporters hold substantially more negative beliefs about the costs and benefits of exporting relative to exporters.
2017
This paper explores the relationship between cognitive abilities and team performance in a start-up setting in a field experiment in which 573 students in 49 teams started up and managed real companies. Performance in this setting hinges on three tasks: opportunity recognition, problem solving, and implementation. Cognitive ability at the individual level has a positive effect on opportunity recognition and problem solving but no clear effect on implementation.
2017
This paper investigates whether social identity considerations and norms may be driving occupational choices by women.
2017
Almost all firms in developing countries have fewer than ten workers, with a modal size of one. Are there potential high-growth entrepreneurs, and can public policy help identify them and facilitate their growth? A large-scale national business plan competition in Nigeria provides evidence on these questions. Random assignment of US$34 million in grants provided each winner with approximately US$50,000.