In a two-sector economy the aggregate household saving function is given by S=-100+0.5Y and planned investment is 100. If autonomous saving by households increases by 50, what is the effect on household saving in equilibrium?

If the output gap in country O equals −$200 million, then country O has a ______________ gap.

Suppose a jar of orange marmalade that is ultimately sold to a customer at The Corner Store is produced by the following production process:

According to the US version of Okun's law, each extra percentage point of ___ unemployment is associated with a ____ percentage point decrease in the output gap, measured in relation to potential output.

The following table reports prices and quantities of the final goods produced in an economy.   

Using 2016 prices calculate the value of real GDP in 2015 and 2016 respectively?

The following table shows the investment and output options for an individual business.  Employment of labour and technology is assumed to be constant.

The business operates in competitive product and factor markets.  Its output sells for $5 per unit.  The price of a new machine is $200. Machines depreciate at a rate of 3 percent and the real interest rate is 2 percent. How many machines will the business choose to invest in?