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SELF-CONCEPT: A person's view or image of herself or himself. This is closely related to one's personality. A poor self-concept or negative sense of oneself can have a damaging affect on a person's ability to interact with others. Those who have a positive self-concept tend to believe in who they are and have confidence in their abilities to deal with various situations. Marketing researchers know that consumers tend to make purchases that reflect and enhance self-concept.
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MARGINAL PROPENSITY TO CONSUME The proportion of each additional dollar of household income that is used for consumption expenditures. The marginal propensity to consume (abbreviated MPC) is another term for the slope of the consumption line and is calculated as the change in consumption divided by the change in income. The MPC plays a central role in Keynesian economics. It quantifies the consumption-income relation and the fundamental psychological law. It is also a foundation for the slope of the aggregate expenditures line and is critical to the multiplier process. A related consumption measure is the average propensity to consume.
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The average length of a "business lunch" is about 36 minutes.
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"I learned about the strength you can get from a close family life. I learned to keep going, even in bad times. I learned not to despair, even when my world was falling apart. I learned that there are no free lunches. And I learned the value of hard work. " -- Lee Iacocca
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MPC Marginal Propensity to Consume
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