... productiveresource?Solution:a. Firms demand resources in order to produce final commodities. Itis the consumers’ demand for final commodities that ultimately gives rise 136 PRINCIPLES OF ECONOMICS 130 PRINCIPLES ... imposition of high initiation fees and long apprenticeships and requirements that employ-ers hire only union members. This is done primarily by craft unions (i.e.,unions of such skilled workers ... 140–141Consumer demand, 96–100Consumer price index (CPI), 31 – 32 Consumer surplus, 99–100Consumption, 37 –40Cost-push inflation, 33 Costs, 4, 5, 104–109CPI (consumer price index), 31 – 32 Credit...