I think in Allen’s book there is both a generic claim of high wages, and some specific analyses of technologies like the spinning jenny and whether it would have paid to adopt them.
The builders’ wages are part of the generic claim, because there was no building-related technology that was analyzed.
The spinners’ wages might be related to the spinning jenny ROI calculations, but I haven’t gone deep enough on the analysis to understand how the paper that was linked might affect those calculations.
I think in Allen’s book there is both a generic claim of high wages, and some specific analyses of technologies like the spinning jenny and whether it would have paid to adopt them.
The builders’ wages are part of the generic claim, because there was no building-related technology that was analyzed.
The spinners’ wages might be related to the spinning jenny ROI calculations, but I haven’t gone deep enough on the analysis to understand how the paper that was linked might affect those calculations.