# MBA 610 Case Problem Assignment-MARKET STRUCTURE ANALYSIS AT COLUMBIA DRUGSTORES, INC. | Homework Help

MARKET STRUCTURE ANALYSIS AT COLUMBIA DRUGSTORES, INC.

Background:

Demonstrating the tools and techniques of market structure analysis is made difficult by

the fact that a firms competitive strategy is largely based upon proprietary data. Firms jealously

guard price, market share, and profit information for individual markets. No one should expect

Target, for example, to disclose profit-and-loss statements for various regional markets or on a

store-by-store basis. Competitors like Wal-Mart would love to have such information available.

It would provide a guide for their own profitable market entry and store expansion decisions.

To see the process that might be undertaken to develop a better understanding of product

demand conditions, consider the hypothetical example of Columbia Drugstores, Inc., based in

Seattle, Washington. Assume Columbia operates a chain of 30 drugstores in the Pacific

Northwest. During recent years, the company has become increasingly concerned with the longrun implications of competition from a new type of competitor, the so-called superstore.

To measure the effects of superstore competition on current profitability, Columbia asked

you to conduct a statistical analysis of the companys profitability in its various markets. To net

out size-related influences, profitability was measured by Columbias gross profit margin, or

earnings before interest and taxes divided by sales. Columbia provided you with proprietary

company profit, advertising, and sales data covering the last year for its 30 stores, along with

public trade association and Census Bureau data concerning the number and relative size

distribution of competitors in each market, among other market characteristics.

You have decided to conduct a regression-based analysis of the various factors thought to

affect Columbias profitability. To aid you in this process, Columbia created the accompanying

spreadsheet entitled Case_Data.xlsx. The data contained in this spreadsheet are described as

follows, where the variable name (as it appears in the spreadsheet) is in italics.

The variable Store Number identifies a particular Columbia drugstore. The dependent

variable is Profit Margin, which as stated before, is Columbias gross profit margin. The

following independent variables are thought to affect Columbias profitability. The variable

Market Share is the relative size of leading competitors in a stores market, measured at the

Standard Metropolitan Statistical Area (SMSA) level. Columbias market share in each area is

expected to have a positive effect on profitability. The Market Concentration Ratio, measured as

the combined market share of the four largest competitors in any given market, is expected to

have a negative effect on Columbias profitability given the stiff competition from large, well-

financed rivals. Both Capital Intensity, measured by the ratio of the book value of assets to

sales, and Advertising Intensity, measured by the advertising-to-sales ratio, are expected to exert

positive influences on profitability. Growth, measured by the geometric mean rate of change in

total disposable income in each market, is expected to have a positive influence on Columbias

profitability, because some disequilibrium in industry demand and supply conditions is often

observed in rapidly growing areas. Finally, to gauge the profit implications of superstore

competition, the variable Superstore Dummy takes the value of 1 if Columbia faced superstore

competition in a particular stores market and 0 otherwise.

Assignment:

In five-to-seven pages of double-spaced writing in a Word document, answer the following

questions:

1. Based on the text above, build a multiple linear regression population model to analyze

the impact of the preceding determinants on Columbias profitability. What is the

multiple linear regression population equation? What are the assumptions underlying the

model?

2. Using Excel and the accompanying dataset, estimate the population model. Copy and

paste your Excel output into your Word document.

3. Based on the Excel output, what is the estimated regression equation?

4. Interpret all coefficient estimates. Identify the significance level for all of these

estimates. Are any of the independent variables likely to actually influence Columbias

profitability? Are your estimates consistent or inconsistent with the a priori conjunctures

found in the article? (E.g., advertising intensity is thought, a priori, to increase profit

margin. Does your coefficient on advertising intensity and its associated p-value suggest

that it is directly correlated with profit margin?)

5. What portion of the variability in profit margin is explained by variability in the

independent variables? Is the estimated regression equation a good fit for explaining

profit margin?

6. Based on the estimate of the coefficient on Superstore Dummy and its associated p-value,

do you believe that superstores pose a threat to Columbias profitability? Expand on the

theoretical foundation for this conclusion, i.e., why would the existence of competitor

superstores affect Columbias profitability?*
*

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