Whole subfields of economics now pursue the subject of the care, feeding, and consequences of innovation, using qualitative and quantitative, historical and mathematical methods. 經(jīng)濟學(xué)的所有子域現在用定性和定量,歷史和數學(xué)的方法,來(lái)研究創(chuàng )新的呵護,孕育和結果這個(gè)主題。