Supplemental material UEFA/CONMEBOL

" HHI-DCB Seasons UEFA&CONMEBOL" shows the HHI and DCB values calculated for the different leagues of the UEFA and CONMEBOL Federations, for the 2009/10 to 2018/19 seasons. "DCB means and variances" shows the average annual values for each country. "Test and estimated models" shows the maximum likelihood estimates with panel data of the Cobb-Douglas function with country factor and pooled model. The results of the tests used are also shown.

「HHI-DCB Seasons UEFA&CONMEBOL」数据集收录了2009/10至2018/19赛季期间，欧洲足球协会联盟（UEFA）与南美足球协会联盟（CONMEBOL）旗下各联赛的HHI与DCB测算值。「DCB均值与方差」数据集展示了各国的年度平均DCB数值。「检验与估计模型」数据集包含纳入国家因子的柯布-道格拉斯（Cobb-Douglas）函数面板数据极大似然估计结果与混合回归模型的对应结果，同时还呈现了所采用各类检验的检验结果。