# Calculating annual number of VCRs sold

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Suppose that the current market price of VCRs is $300, that average consumer disposable income is $30,000, and that the price of DVD players (a substitute for VCRs) is $500. Under these conditions annual U.S. demand for VCRs is 5 million per year. Statistical studies have shown that for VCRs the own-price elasticity of demand is -1.3. The income elasticity of demand for VCRs is 1.7. The cross-price elasticity of demand for VCRs with respect to DVDs is 0.8. Use this information to predict the annual number of VCRs sold if Income tax reductions raise average disposable personal income by 5%, with prices for DVDs and VCRs unchanged.

4.8 million

6.17 million

5.425 million

5.2 million

4.61 million

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Solution calculates annual number of VCRs sold following a tax reduction.

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Change in disposable personal income=+5%

Change in demand=Income elasticity of ...

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- BEng (Hons) , Birla Institute of Technology and Science, India
- MSc (Hons) , Birla Institute of Technology and Science, India

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