how to take account for industry and year effects ppt what is industry impact in stata how to control for industry and year effects spss how to take account of industry and year effects how to take account industry effects how do i take account of industry and year gics how to take account of industry and year effects in stata can industry effects be manipulated in spss can industry based variables be controlled by dic codes in stata spss how to control for industry and year effects what is the sic of the year variable can you take account of industry and year effect how to control industry in statistics how to account for industry and year effects in stata how to adjust for industry and year effects how to control year effects in spss can spss control for years what ssis to use for industry effect can industry affect year industry effects spss