Suppose the government in this economy decides to increase government purchases by $250 billion. The increase in government purchases will lead to an increase in income, generating an initial change in consumption equal to . This increases income yet again, causing a second change in consumption equal to . The total change in demand resulting from the initial change in government spending is .

Amanager of a store that sells and installs spas wants to prepare a forecast for january and june of next year. her forecasts are a combination of trend and seasonality. she uses the following equation to estimate the trend component of monthly demand: ft = 30+5t, where t = 1 in january of this year. seasonal relatives are 0.60 for january and 1.50 for june. what demands should she predict for january and june of next year