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  • 1
    Online Resource
    Online Resource
    Washington, D.C : The World Bank
    Language: English
    Pages: 1 Online-Ressource (27 p)
    Series Statement: World Bank E-Library Archive
    Parallel Title: Erscheint auch als Jamison, Julian C The Entry of Randomized Assignment into the Social Sciences
    Abstract: Although the concept of randomized assignment to control for extraneous factors reaches back hundreds of years, the first empirical use appears to have been in an 1835 trial of homeopathic medicine. Throughout the 19th century, there was primarily a growing awareness of the need for careful comparison groups, albeit often without the realization that randomization could be a particularly clean method to achieve that goal. In the second and more crucial phase of this history, four separate but related disciplines introduced randomized control trials within a few years of one another in the 1920s: agricultural science, clinical medicine, educational psychology, and social policy (specifically political science). Randomized control trials brought more rigor to fields that were in the process of expanding their purviews and focusing more on causal relationships. In the third phase, the 1950s through the 1970s saw a surge of interest in more applied randomized experiments in economics and elsewhere, in the lab and especially in the field
    URL: Volltext  (Deutschlandweit zugänglich)
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  • 2
    Language: English
    Pages: 1 Online-Ressource (37 p)
    Series Statement: World Bank E-Library Archive
    Parallel Title: Erscheint auch als Jamison, Julian C Social Learning about Environmental Innovations: Experimental Analysis of Adoption Timing
    Abstract: Laboratory experiments were conducted to investigate how private and public information affect the selection of an innovation and the timing of adoption. The results shed light on the behavioral anomaly called the "energy-efficiency gap" in which consumers and firms delay adoption of cost-effective energy and environmental innovations. The subjects chose between competing innovations with freedom to select the timing of their adoption, relying on private signals and possibly observation of their peers. When deciding whether to make an irreversible choice between safe and risky technologies, roughly half the subjects delayed adoption beyond the time indicated by equilibrium behavior-confirming the behavioral anomaly found for environmental innovations. When they did adopt, the subjects gave proportionately more weight to their private signals than to the actions of their peers, implying they do not 'herd' on the latter. Nevertheless, when the subjects observed their peers' decisions, they did accelerate the timing of their adoption despite not necessarily imitating their peers. This result occurred even when the payoffs were statistically independent, as if observing prior adoptions exerted 'peer pressure' on the subjects to act. The experimental results suggest that rapid dissemination of information about peer actions can speed up the diffusion of environmental innovations and improve selection among competing technologies
    URL: Volltext  (Deutschlandweit zugänglich)
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  • 3
    Language: English
    Pages: 1 Online-Ressource (circa 32 Seiten) , Illustrationen
    Series Statement: Policy research working paper 9085
    Series Statement: World Bank E-Library Archive
    Series Statement: Policy research working paper
    Parallel Title: Erscheint auch als Avitabile Ciro Addressing High School Dropouts with a Scalable Intervention: The Case of PODER
    Keywords: Graue Literatur
    Abstract: Working with the Mexican Ministry of Education, this study piloted a scalable program to reduce high school dropout rates by focusing on socio-emotional skill development and mathematics tutoring. The intervention was evaluated through a randomized field experiment with more than 5,000 youths at 20 upper secondary schools in Mexico City. An intention-to-treat analysis finds some evidence that exposure to the Opportunities and Development to Avoid Risks Program increases socio-emotional skills, but no evidence that it improves math outcomes or future attendance. Likely explanations for these 0 results include low take-up and other process factors, which are document qualitatively, as well as heterogeneous treatment effects. In particular, an inverse-probability-weighted matching model is suggestive of an effect whereby some students participate actively in the program and drop out of school less often, while other students choose not to participate when given the option and actually drop out more as a result
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  • 4
    Language: English
    Pages: 1 Online-Ressource (circa 51 Seiten) , Illustrationen
    Series Statement: Policy research working paper 8489
    Series Statement: World Bank E-Library Archive
    Series Statement: Policy research working paper
    Parallel Title: Erscheint auch als Saraf, Priyam Improving Mental Well-Being and Productivity of Small-Medium Entrepreneurs in Fragile, Conflict and Violence Affected Areas: Can Cognitive Behavioral Therapy Trainings Help?
    Keywords: Gründungsausbildung ; Produktivität ; Sozialer Konflikt ; Gewalt ; Psychotherapie ; Stress ; Humankapital ; Entwicklungsindikator ; KMU ; Risikomanagement ; Pakistan ; Graue Literatur
    Abstract: This literature review summarizes the link between psychological well-being and entrepreneurial outcomes for small and medium-size enterprises in fragile, conflict, and violence-affected contexts. It identifies potentially promising, scalable psychosocial training interventions, based on cognitive-behavioral therapy approaches, that can be adapted and implemented to improve psychological health at the individual level, that could lead to better business performance at the firm level. The findings from the literature of cognitive psychology and small business economics suggest that small and medium-size enterprise entrepreneurs, without diversified capital, stable sources of income, or delegation opportunities, tend to suffer from more stress and anxiety compared with their peers in salaried jobs or in larger firms. Chronic stress is found to deplete their psychological resources, erode their motivating role within the firm, and result in counterproductive work behavior. The combination of regular business-related entrepreneurial stressors with the uncertainties of a fragile, conflict, and violence-specific environment-natural disasters, conflict, migration, and/or exposure to trauma-can amplify poorer psychological outcomes and hamper business performance. Utilization of cognitive-behavioral therapy approaches to mitigate stress and build psychological capital appears promising. Although such curricula have been tried and tested for other target groups at scale, such an intervention has not yet been applied for at-risk entrepreneurs. Given that small and medium-size enterprises are important drivers of income in fragile, conflict, and violence-affected contexts, future research might benefit from evaluating whether the effects of cognitive-behavioral therapy-based training interventions can be replicated for these new target groups and, importantly, whether the interventions can lead to better behavioral outcomes and business performance over time
    URL: Volltext  (Deutschlandweit zugänglich)
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  • 5
    Language: English
    Pages: 1 Online-Ressource (circa 38 Seiten) , Illustrationen
    Series Statement: Policy research working paper 8473
    Series Statement: World Bank E-Library Archive
    Series Statement: Policy research working paper
    Parallel Title: Erscheint auch als Gauri, Varun Motivating Bureaucrats through Social Recognition: Evidence from Simultaneous Field Experiments
    Keywords: Krankenhausmanagement ; Betriebliche Dokumentation ; Social Marketing ; Verhalten in Organisationen ; Nigeria ; Graue Literatur
    Abstract: Bureaucratic performance is a crucial determinant of economic growth. Little is known about how to improve it in resource-constrained settings. This study describes a field trial of a social recognition intervention to improve record keeping in clinics in two Nigerian states, replicating the intervention-implemented by a single organization-on bureaucrats performing identical tasks in both states. Social recognition improved performance in one state but had no effect in the other, highlighting both the potential and the limitations of behavioral interventions. Differences in observables did not explain cross-state differences in impacts, however, illustrating the limitations of observable-based approaches to external validity
    URL: Volltext  (Deutschlandweit zugänglich)
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  • 6
    Language: English
    Pages: 1 Online-Ressource (29 pages)
    Parallel Title: Erscheint auch als Domenella, Yanina Can Business Grants Mitigate a Crisis? Evidence from Youth Entrepreneurs in Kenya during COVID-19
    Keywords: Business Development Services ; Business Grant ; Business Training ; Coronavirus ; Covid-19 ; Disease Control and Prevention ; Enterprise Development and Reform ; Entrepreneurship ; Health, Nutrition and Population ; Pandemic Response ; Private Sector Development ; Youth Entrepreneurs
    Abstract: COVID-19 was a major shock to youth entrepreneurs and their businesses in Kenya. This paper studies the causal impact of grants-worth two months of baseline business revenue-and business development services as potential mitigation measures. Using multiple rounds of phone surveys up to seven months from the start of the pandemic, the analysis finds that youth who are assigned business grants or a combination of grants and business development services are significantly more likely to maintain a business, earn more revenue and profits, retain employees, and report higher confidence and satisfaction with life. There are no corresponding effects of business development services alone, although the follow-up period is extremely short for training effects to materialize. These results suggest that cash infusion for young entrepreneurs in times of an aggregate shock can be instrumental in moderating its immediate harmful impacts
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  • 7
    Language: English
    Pages: 1 Online-Ressource (circa 30 Seiten) , Illustrationen
    Series Statement: Policy research working paper 8685
    Series Statement: Policy research working paper
    Keywords: Graue Literatur
    URL: Volltext  (Deutschlandweit zugänglich)
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  • 8
    Language: English
    Pages: 1 Online-Ressource (circa 40 Seiten) , Illustrationen
    Series Statement: Policy research working paper 8872
    Series Statement: World Bank E-Library Archive
    Series Statement: Policy research working paper
    Parallel Title: Erscheint auch als Saraf, Priyam Group-Based Cognitive Behavioral Training Improves Mental Health of SME Entrepreneurs: Experimental Evidence from Conflict-Affected Areas of Pakistan
    Keywords: Graue Literatur
    Abstract: Mental health, well-being and lasting economic outcomes are intimately connected. However, in geographies marked by fragility, conflict and violence, entrepreneurs of small and medium-size experience chronic stress and poor mental health on a regular basis. This paper describes the incremental effects of a five-week group cognitive behavioral training program-over and above the effect of receiving cash grants-on reducing depression and anxiety, as well as improving well-being among small and medium-size enterprise entrepreneurs in conflict-affected parts of Pakistan. Entrepreneurs in the treatment group received the intervention as well as cash grants, whereas those in the control group received only cash grants. The study, which was conducted with 235 entrepreneurs, found that cognitive behavioral training leads to significant improvements in mental health outcomes in the short run. Three months after the intervention, analysis of pooled data across two follow-up rounds (at five weeks and three months after) show that entrepreneurs in the treatment group experience statistically significant (at the 10 percent level) reduction in the intensity and prevalence of depression and anxiety symptoms (measured by the Patient Health Questionnaire Anxiety and Depression Scale) and higher levels of well-being (measured by the five-item World Health Organization Well-being Index) compared with the control group. Entrepreneurs in the treatment arm experienced a substantial decline in the odds of experiencing depression and anxiety compared with those in the control group (odds ratio of 0.46 for the treatment group relative to the control group), although the results are statistically significant only when the data are pooled. The effect was marked for those experiencing mild/moderate levels of depression and anxiety, indicating the clinical value of such low-touch early interventions. An endline survey is planned at 18 months to assess the longer-term impacts of the intervention on mental health and well-being as well as its impact on business performance
    URL: Volltext  (lizenzpflichtig)
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  • 9
    Language: English
    Pages: 1 Online-Ressource (108 p)
    Series Statement: World Bank E-Library Archive
    Parallel Title: Erscheint auch als Blattman, Christopher Reducing Crime and Violence : Experimental Evidence on Adult Noncognitive Investments in Liberia
    Abstract: The paper shows that self-control, time preferences, and values are malleable in adults, and that investments in these skills and preferences reduce crime and violence. The authors recruited criminally-engaged Liberian men and randomized half to eight weeks of group cognitive behavioral therapy, fostering self-regulation, patience, and noncriminal values. They also randomized
    URL: Volltext  (Deutschlandweit zugänglich)
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  • 10
    Language: English
    Pages: 1 Online-Ressource (38 pages)
    Parallel Title: Erscheint auch als Print Version: Athey, Susan Shared Decision-Making: Can Improved Counseling Increase Willingness to Pay for Modern Contraceptives?
    Keywords: Counseling ; Family Planning ; Family Planning Research ; Fertility ; Health Service Management and Delivery ; Health, Nutrition and Population ; Heterogenous Treatment Effect ; Long-Acting Reversible Contraceptive ; Reproductive Health
    Abstract: Long-acting reversible contraceptives are highly effective in preventing unintended pregnancies, but take-up remains low. This paper analyzes a randomized controlled trial of interventions addressing two barriers to long-acting reversible contraceptive adoption, credit, and informational constraints. The study offered discounts to the clients of a women's hospital in Yaounde, Cameroon, and cross-randomized a counseling strategy that encourages shared decision-making using a tablet-based app that ranks modern methods. Discounts increased uptake by 50 percent, with larger effects for adolescents. Shared decision-making tripled the share of clients adopting a long-acting reversible contraceptive at full price, from 11 to 35 percent, and discounts had no incremental impact in this group
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