Douglas Harper's Etymology Dictionary
Usage examples of "socio-economic".
Based on the seroepidemiology we found just that, but noticed a paradoxical reversal in the wealthier classes until we reached a glaring absence in businessmen above a certain socio-economic level.
There is also a big before and after photo, on the left a young man in chinos who a market researcher might put in the B2 socio-economic group, self-employed graphic designer or something similar, and on the right the young man is now done up as a woman from a Bradford council estate who has had a hard life on account of her daughter being pregnant and on crack and who sings at the Trades and Labour Club on Fridays to keep her spirits up.
Still later, there will be market segmentation not simply along occupational lines, but along socio-economic and psycho-social lines as well.