Final answer:
An increase in consumer incomes will lead to an increase in demand for plasma TVs.
Step-by-step explanation:
An increase in consumer incomes will lead to an increase in demand for plasma TVs, assuming they are a normal good. This is because when consumers have more disposable income, they are able to purchase more goods and services, including plasma TVs.
For example, if a consumer's income increases, they may decide to buy a new plasma TV that they were previously unable to afford. This leads to an increase in consumption and demand for plasma TVs.
It is important to note that the increase in consumption may be smaller than the increase in income, depending on the consumer's marginal propensity to consume. The marginal propensity to consume measures the proportion of additional income that is spent. If the marginal propensity to consume is less than 1, the increase in consumption will be smaller than the increase in income.