In an 'informal economy', the production of goods and services are:

1. neither measured nor included in GDP.
2. not measured but are included in GDP.
3. measured and included in GDP.
4. usually too insignificant to be included in GDP.
5. measured but not included in GDP.

Using the expenditure method, which of the following would increase gross private domestic investment in an economy where Apple Co. operates?

1. An increase in the level of Apple's inventory.
2. An increase in Apple's operating costs.
3. An increase in the shares of Apple stock households own.
4. An increase in the number of workers Apple hires.
5. An increase in the number of highway construction projects the government is funding.