本研究探討在聖多美普林西比民主共合國,經濟成長和出口、國內需求及外援的雙向關係,並依循前經濟成長領域的論文研究。本研究的目的在了解經濟成長的最佳方式,以Johansen共整合模型和Granger因果關係證實結果,且僅考慮出口和經濟成長的單向因果關係。 This study examines the casual bidirectional relationship of economic growth, exports, domestic demand, and foreign aid, counting for local differences in Sao Tome and Principe compared to previous studies in this field. The aim of this study is to find the best path for economic growth; Johansen co-integration and Granger causality test are used for empirical results, the results shows unidirectional causal relationship between economic growth and exports.