Whenever you're ready, walk me through how you'd approach this.
Imagine this: a new mobile phone is introduced, and for about a year there is only one other competitor in the market. You work for Motorola, and the company is deciding whether to invest in marketing. What would you do, and what would you look at, to help the company make a decision as an analyst?
Clarify the decision objective, identify the data required, and explain how you would compare expected marketing benefits with costs and risks. State any assumptions clearly and recommend an analytical approach.