Nonparametric Tests of Market Structure: An Application to the Cigarette Industry
提出非参数统计方法检验市场结构，并以香烟行业为例展示其应用，帮助判断市场是否竞争或垄断。
Orley Ashenfelter, Daniel Sullivan, Nonparametric Tests of Market Structure: An Application to the Cigarette Industry, The Journal of Industrial Economics, Vol. 35, No. 4, The Empirical Renaissance in Industrial Economics (Jun., 1987), pp. 483-498