Suppose Demand Is Given By $Q ^ { d } = 400 - 15 P + I$

question 24

Multiple Choice

Suppose demand is given by $Q ^ { d } = 400 - 15 P + I$ , where $Q ^ { d }$ is quantity demanded, $P$ is price and $I$ is income. Supply is given by $\mathrm { Q } ^ { \mathrm { s } } = 5 \mathrm { P }$ , where $\mathrm { Q } ^ { \mathrm { s } }$ is quantity supplied. When $\mathrm { I } = 100$ , equilibrium price is

• A) 15
• B) 20
• C) 25
• D) 30

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Definitions:

Causation

The relationship between cause and effect, where one event (the cause) directly leads to the occurrence of another event (the effect).

Behaviour

The actions or reactions of an organism, often in response to its environment.

Behaviourism

A psychological approach that emphasizes the study of observable behavior and the role of environmental forces in shaping it, discounting mental states as primary causes of behavior.

Psychoanalytic Theory

A theory of personality organization and the dynamics of personality development that guides psychoanalysis, founded on the premise that unconscious forces such as unresolved conflicts from childhood shape behavior.