Exhibit 16-7.It is believed that the sales volume of one liter Pepsi bottles depends on the price of the bottle and the price of one liter bottle of Coca Cola.The following data has been collected for a certain sales region. 
Using Excel's regression,the linear model PepsiSales = β0 + β1PepsiPrice + β2ColaPrice + ε and the log-log model ln(PepsiSales)= β0 + β1ln(PepsiPrice)+ β2ln(ColaPrice)+ ε have been estimated as follows: 
Refer to Exhibit 16.7.For the estimated log-log model,interpret the estimated coefficient of ln(ColaPrice).
Definitions:
Business Plan
A business plan is a formal written document that outlines a company's objectives, strategies, market analysis, financial forecasts, and operational procedures for achieving these goals.
Financial Plan
A detailed strategy outlining how a business will maintain its financial health, including projections for income, expenses, and investment needs.
Macro-Environment
Refers to the broad external conditions that can impact businesses and industries, such as economic trends, social changes, technological advances, environmental factors, and political policies.
Business Plan
A formal written document that describes the nature of a business, its objectives, strategies, market, financial forecasts, and management team.
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