November 28, 2018
New report challenges idea that productivity has no link with income
A new IZA World of Labor report published today suggests that workers’ effort may be more responsive to wage incentives and therefore the efficiency costs of progressive labour income taxation larger than previously thought. A fundamental question in economic policy is how labour supply responds to changes in remuneration. The responsiveness of labour supply determines the size of the employment impact and efficiency loss of progressive income taxation for example. The economist Tess Stafford of the University of New South Wales, Australia, summarises a number of recent studies of independent contractors’ labour supply which confirm a key prediction of economic theory: workers work more (in fact, quite a bit more) when earnings are temporarily high.