Are the following injections or leakages from the Australian Economy? Give any comments you feel are necessary (e.g. C, S, I), and state their effect on the level on income.

Increase importation of machinery:

New contract to sell wheat to China::

Government builds a new road to Darwin:

Increase in old age pensions:

Vu buys a new Hyundai car:

Oscar starts a savings account:

Ruby buys Australian Government securities:

Esther takes a holiday to Queensland:

Joey fly's to Antarctica to see the ice and snow return with Qantas:

Decrease sales at our school canteen:

Jasmine catches the bus rather than rides her bike:

University College decides to build us a new swimming pool:

Students are used to empty the college bins rather than the cleaner: