Jevons also made celebrated contributions to the problems of index Numbers.
杰文斯在指数问题方面亦有杰出的贡献。
2
In the 19th century Leon Walras and William Stanley Jevons both started their work with a view to importing the insights of physics into the economic sphere.
19世纪，莱昂·瓦尔拉(leon Walras)和威廉?斯担利?杰文斯(William Stanley Jevons)都开始着眼于将物理学的真知灼见引入经济学领域。