Heuristics on Call: The Impact of Mobile-Phone-Based Business-Management Advice
研究在印度和菲律宾开展随机实验，评估手机端商业培训对微型企业主的影响，发现能显著改善商业实践（提高0.06-0.12个标准差），但对销售额或利润无显著影响。
Abstract There is growing evidence that business training for micro-entrepreneurs can be effective. However, in-person training can be expensive and imposes costs on the target beneficiaries. This paper presents the results of a two-site randomized evaluation of a light-touch, mobile-phone-based business-training service for micro-entrepreneurs in India and the Philippines. The results show that the training had a statistically significant impact on the adoption of improved business practices, with an increase of 0.06 to 0.12 standard deviation points when considering a binary indicator of business practices. The study finds no evidence of impacts on business sales or profits, though the confidence intervals are wide enough to include meaningful effect sizes (positive or negative). These results suggest that mobile-phone-based training can be a cost-effective and scalable way to impart business skills to micro-entrepreneurs.