Last Year, Joan Bought 50 Kilograms of Hamburger When Her

question 157

Multiple Choice

Last year, Joan bought 50 kilograms of hamburger when her household income was $40 000.This year, her household income was only $30 000 and Joan bought 60 kilograms of hamburger.Holding everything else constant, Joan's income elasticity of demand for hamburger is:

• A)positive, so Joan considers hamburger to be an inferior good.
• B)negative, so Joan considers hamburger to be an inferior good.
• C)positive, so Joan considers hamburger to be a normal good and a necessity.
• D)negative, so Joan considers hamburger to be a normal good.

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Definitions:

Medulla Oblongata

The lower portion of the brainstem that regulates vital functions, such as heart rate and breathing.

Vasomotor Center

Area within the medulla oblongata that regulates the diameter of blood vessels by way of the sympathetic nervous system.

Blood Colloid Osmotic Pressure

Pressure exerted by plasma proteins on capillary walls, which helps to maintain the water balance between blood and interstitial fluid.

Capillary

Small, thin-walled blood vessels that connect arterioles and venules, and facilitate the exchange of water, oxygen, carbon dioxide, and many other nutrients and waste substances between blood and tissues.