本文將信任作為新的變數,加入到消費者最優問題當中;分別基於RBC模型和AK模型的框架,推导了信任對於個人以及社會經濟表現的影響.兩個模型的數學解都預測信任會正向影響社會的產出水平,但在信任是否影響經濟的成長速度這一命題上得出了不同的結論.利用跨國數據和中國省級數據進行實證研究,我們發現信任應當有收入效果,但沒有成長效果;特別的,我們還發現信任和人力資本之間具有相互促進的內在關係.在個人收入層面, 我們利用中國的調查資料, 也同時驗證了信任對於個人所得的正向效果. / This paper presents two modified models in which social trust is constructed in the representative household’s budget constraint. The solutions of both models predict that trust is positively related with the overall output, while the predictions for the growth effect of trust are ambiguous. Using the cross-country data and Chinese province data, we find our result of empirical analysis suggests that trust should only has income effect but no growth effect. Furthermore, we find there’s an important mutually enhancing relationship between human capital and trust. On individual level, the positive income-trust relationship is further verified using the Chinese survey data.