Aid versus Trade Revisited: Donor and Recipient Policies in the Presence of Learning‐by‐Doing
研究在受援国出口生产存在干中学外部性时，援助与贸易优惠作为替代援助形式的（非）等价性，发现将捐助支持从援助转向贸易优惠可提高受援国福利，并通过模拟展示潜在增长与福利收益。
We examine the (non) equivalence of aid and trade preferences as alternative forms of donor assistance in the presence of learning-by-doing externalities in recipient-country export production. Using a model based on van Wijnbergen (1985), we show that switching donor support on the margin from aid to trade preferences can increase recipient-country welfare. Simulations in which the productivity externality also interacts with private capital accumulation and fiscal distortions illustrate the potential growth and welfare gains from a revenue neutral re-orientation of donor assistance. We conclude by considering why these potential dynamic gains remain unexploited by both donors and recipients.