Scenario 34-2

question 89

Multiple Choice

Scenario 34-2.The following facts apply to a small,imaginary economy.
• Consumption spending is $6,720 when income is $8,000.
• Consumption spending is $7,040 when income is $8,500.
-Refer to Scenario 34-2.The marginal propensity to consume for this economy is

• A)0.64.
• B)0.83.
• C)0.56.
• D)0.840.

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Definitions:

Excitatory PSPs

Excitatory postsynaptic potentials are increases in potential that bring a neuron closer to the threshold for firing, facilitating the transmission of signals.

Inhibitory PSPs

Post-synaptic potentials that make a post-synaptic neuron less likely to generate an action potential.

Absolute Refractory Period

A period immediately following the firing of a nerve fiber when it cannot be stimulated for a brief period, regardless of how strong the incoming stimulus may be.

Relative Refractory Period

A period shortly after the firing of a nerve during which the nerve cannot be stimulated to fire again at its maximum rate, but can still respond to a stronger than usual stimulus.