The demand and supply curves shown below apply to a competitive market for a factor used in the production of widgets. 
FIGURE 13-2
-Refer to Figure 13-2.This factor market is initially in equilibrium at point B,but changes occur that cause the equilibrium to shift to point D (S curve shifts left) .At the new equilibrium,total factor earnings ________ compared to the initial equilibrium.
Definitions:
Feral Children
In myths and rare real-world cases, children who have had little human contact and may have lived in social isolation from a young age.
Nature Vs. Nurture
The debate concerning the relative importance of an individual's innate qualities versus personal experiences in determining or causing differences in physical and behavioral traits.
Hereditary Traits
Characteristics and qualities that are genetically passed from parents to their offspring.
Social Learning
A theory that posits individuals learn new behaviors and norms through observation, imitation, and modeling from others in their society or social group.
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