Why do the poor travel less? Urban structure, commuting and economic informality in Mexico City
研究发现墨西哥城穷人通勤时间最短，原因在于非正规工作地点靠近其居住地，这是对正规就业与住房空间错配的应对。
While in Mexico City formal jobs are concentrated in the city centre, affordable housing is generally only available in its outer rings. This reduced accessibility to formal employment would suggest that the poor have longer commutes. However, observed travel times show that low-income workers actually have the shortest commutes. Using two linear programming transportation models we found that this is due to the location of informal work activities, which seems to be a function of the residential location of workers involved in the informal sector as a response to the disadvantages of the formal urban structure of jobs and housing that affect the poor.