cooperation-dummies什么意思

题目

cooperation-dummies什么意思
cooperation-dummies 源文短在此.
In accordance with the nature of the dependent variables,ordered logistic regressions were run.The following specification has been tested for the country as a whole:
Technological status = α + β1log(employment) + β2(group) + β3(internationalisation) + β4(start-up) + β5(human_capital) + β6(cooperation_dummies) + β7(sectoral_dummies) + β8(regional_dummies) + ε
其中 对三个不太明白,都跟dummies有关：
cooperation_dummies
sectoral_dummies
regional_dummies
虚设?比如 虚拟合作,傀儡部门,虚设部门?实在搞不懂.
源文出自：
Technological Capabilities and Patterns of Cooperation of UK Firms:A Regional Investigation 2009

答案

dummies 虚拟变量,变量,矢量
从小到大,cooperation dummies团体协作矢量,sectoral dummies 部门矢量,regional dummies 区域（地方）矢量