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The solution addresses:

1) Explain the nature of competitiveness according to Porter and his five forces model. Explain each component in detail.
2) What are the major different between US and Multinational operation with regard to their affect on strategic management?
3) Define and explain value chain analysis (VCA). What role does benchmarking play in VCA analysis?
4) E-commerce and globalization are external changes that are transforming business and society. Explain these concepts and provide 2 examples which support this statement.
5) Explain the advantages and disadvantages of outsourcing and provide example of companies that use outsourcing as a strategic tool.

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The solution addresses

1) Explain the nature of competitiveness according to Porter and his five forces model. Explain each component in detail.
2) What are the major different between US and Multinational operation with regard to their affect on strategic management?
3) Define and explain value chain analysis (VCA). What role does benchmarking play in VCA analysis?
4) E-commerce and globalization are external changes that are transforming business and society. Explain these concepts and provide 2 examples which support this statement.
5) Explain the advantages and disadvantages of outsourcing and provide example of companies that use outsourcing as a strategic tool.

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Statistics Problems - Regression Analysis, Autocorrelation, Multicollinearity

1. Suppose an appliance manufacturer is doing a regression analysis, using quarterly time-series data, of the factors affecting its sales of appliances. A regression equation was estimated between appliance sales (in dollars) as the dependent variable and disposable personal income and new housing starts as the independent variables. The statistical tests of the model showed large t-values for both independent variables, along with a high r2 value. However, analysis of the residuals indicated that substantial autocorrelation was present.

a. What are some of the possible causes of this autocorrelation?

b. How does this autocorrelation affect the conclusions concerning the significance of the individual explanatory variables and the overall explanatory power of the regression model?

c. Given that a person uses the model for forecasting future appliance sales, how does this autocorrelation affect the accuracy of these forecasts?

d. What techniques might be used to remove this autocorrelation from the model?

2. Suppose the appliance manufacturer discussed in Exercise 1 also developed another model, again using time-series data, where appliance sales was the dependent variable and disposable personal income and retail sales of durable goods were the independent variables. Although the r2 statistic is high, the manufacturer also suspects that serious multicollinearity exists between the two independent variables.

a. In what ways does the presence of this multicollinearity affect the results of the regression analysis?

b. Under what conditions might the presence of multicollinearity cause problems in the use of this regression equation in designing a marketing plan for appliance sales?

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