1 A urine culture test is done to identify the specific bacteria that are causing a urinary tract infection.2  Ideally, a sample of urine is collected by cystocentesis or by inserting a needle directly into the animalâs bladder. A urine culture test is done to identify the specific bacteria that are causing a urinary tract infection.
The multiplier effect is exploited by governments attempting to use fiscal stimulus policies to increase the general level of economic activity. This can be done in a period of recession or economic uncertainty, when unemployment of labor is high and other resources are underutilized.
Deriving the Expenditure Multiplier Deriving the expenditure multiplier requires some math. When a business spends $1 on new plant or equipment it injects $1 into the economy. That $1 becomes income to someone (whoever built the machine or constructed the new plant) who spends a portion of it and saves the rest.