This paper is designed to help both the beneficiary governments and donors of aid-for-trade identify countries that are under-performing in trade and which are receiving less aid for trade than their global performance might otherwise suggest is necessary. The authors develop ten measures of trade performance and capacity (including trade-related infrastructure, institutions, and incentives) to assess potential demand, and then look at country allocations of aid for trade to see which are receiving below-average amounts in the supply of aid for trade - relative to their potential demand. As they design national development strategies, countries may wish to consider giving greater attention to trade and requesting that donors allocate more aid for trade. As part of the analysis, the paper provides a conceptual framework for selecting indicators of trade performance and its policy determinants that the World Trade Organization and its partners might monitor closely as part of the aid for trade initiative.