Which country had the highest level of fossil-fuel carbon dioxide emissions per capita in 2008?

Which type of unemployment is associated with the slump in aggregate demand that accompanies a recession?

A) structural unemployment B) cyclical unemployment C) expansionary unemployment D) frictional unemployment

As more workers are hired, the marginal physical product of labor eventually declines because

A) less efficient workers are hired as the number of workers increases. B) workers do not work well together when the number of workers increases. C) the amount of capital each worker has to work with declines as the number of workers increases. D) of diseconomies of scale.