INJECTION: A non-consumption expenditure on gross domestic product, including investment expenditures, government purchases, and exports. Injections are combined with leakages in the injection-leakage model used to identify equilibrium aggregate output in Keynesian economics. The notion of injection is best viewed through the circular flow, in which investment expenditures, government purchases, and exports are "injected" into the main flow between output, factor payments, national income, and consumption.

     See also | injection-leakage model | leakage | investment expenditures | government purchases | export | injection line | leakage line | Keynesian equilibrium | aggregate output |

INJECTION, AmosWEB GLOSS*arama, http://www.AmosWEB.com, AmosWEB LLC, 2000-2018. [Accessed: June 19, 2018].

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A service that transfers the risk of loss from an individual to a larger group. The larger group is typically represented by an insurance provider, either a private for-profit company or a government agency. The insurance provider can assume the risk through risk pooling. Risk averse people, who are willing to pay a premium to avoid risk, are the ones most inclined to purchase insurance. The risk averse individual agrees to incur a small guaranteed loss (the premium) but avoids incurring a less likely, but much bigger, loss.

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