国际货币基金组织：几内亚比绍国内收入调动（英文版）

This paper quantifies Guinea-Bissau’s tax potential using a stochastic frontier model and investigates the underlying sources of untapped revenue. Beyond benchmarking performance against structural peers, it tackles the complex drivers of low revenue mobilization, including high informality, administrative inefficiencies, a fragmented tax system, and weak enforcement. The analysis distinguishes between structural constraints and policy or institutional gaps, offering a nuanced diagnosis of w