This study explores the nexus between foreign aid and Chad's economic growth. Empirical evidence is based on annual data from 1982 to 2018. The study used ARDL, FMOLS, and DOLS techniques to establish interconnection among the economic indicators. Subsequently, the study utilized the wavelet coherence technique to capture causality and correlation between economic growth and the independent variables. One of the wavelet approach's uniqueness is that it shows the pattern and behavior of the variables used, including the different time horizons. Thus, we explore the dynamic influence of gross capital formation, foreign aid, import, and export on Chad's economic growth. The result of the ARDL long-run estimates reveals that gross capital formation and foreign aid exert insignificant impact on GDP growth. However, exports and imports exert a positive and significant impact on GDP growth. Furthermore, the global financial crisis has a negative and significant impact on the economy of Chad. The outcomes of the wavelet coherence test provide supportive evidence for the ARDL long-run outcomes. Hence, we suggested that substantial macroeconomic reforms and economic liberalization initiatives will help in the dissemination of information and promote domestic investment and importation of high-tech goods.

这项研究探索了外国援助与乍得经济增长之间的联系。经验证据基于1982年至2018年的年度数据。该研究使用了ARDL，FMOLS和DOLS技术来建立经济指标之间的相互联系。随后，该研究利用小波相干技术来捕获经济增长与自变量之间的因果关系和相关性。小波方法的独特性之一是它显示了所使用变量的模式和行为，包括不同的时间范围。因此，我们探讨了总资本形成，外国援助，进出口对乍得经济增长的动态影响。ARDL长期估计的结果表明，资本形成总额和外国援助对GDP增长的影响不大。然而，进出口对国内生产总值的增长产生积极而重大的影响。此外，全球金融危机对乍得的经济产生了负面和重大影响。小波相干性测试的结果为ARDL长期结果提供了支持性证据。因此，我们建议进行实质性的宏观经济改革和经济自由化举措将有助于信息的传播，并促进国内投资和高科技产品的进口。