There are theories which have developed a concept called human capital -LRB- referring to the skills that workers possess , not necessarily their actual work -RRB- , although there are also counter posing macro-economic system theories that think human capital is a contradiction in terms .

There are macroeconomic system theories which have created a concept called human capital -LRB- referring to the skills that workers possess , not necessarily their actual work -RRB- , although there are also theories that think human capital is a contradiction in terms .
