skilled labour
4.There are several ways of dealing with a falling supply of labour: work might be shifted offshore, to take advantage of abundant cheaper workers in poorer countries; laxer immigration rules might allow in more skilled labour from abroad; new equipment could enhance the productivity of a better-educated workforce.
6.As much of it as exceeds the actual necessaries of life and health (an excess which in the case of skilled labourers is usually considerable) is not expended in supporting labour, but in remunerating it, and the labourers could wait for this part of their remuneration until the production is completed;

