世界银行：移动货币税对家庭福利的影响：来自坦桑尼亚的证据（英文版）

This paper examines the welfare effects of Tanzania’s 2021 levy on mobile money transfers, a policy that sharply increased transaction costs in a country where mobile money is the primary channel for financial access and remittances. Using two waves of the Tanzania National Panel Survey (2014/15 and 2020/22) combined with high-frequency phone survey data, a triple-difference identification strategy was implemented to isolate the impact of the levy on rural and urban households before and afte