1. Discuss in detail why an organization must analyze the need for applications and justify it in terms of cost and benefits.2. Discuss in detail how economists measure productivity. Also discuss concepts behind labor productivity, the productivity paradox and explanations of the apparent productivity paradox. 3. Discuss in detail traditional financial methods used to evaluate investment decisions including present value (NPV), internal rate of return (IRR), and payback period including scenarios when one over the other would be more appropriate. 4. Select an IT-going green initiative and describe in detail how you would build the business case to justify such an investment. List some metrics for the justification.