Assume that all investors have the same information and care only about expected return and volatility. If new information arrives about one stock, can this information affect the price and return of other stocks? If so, explain why? If new information arrives about one stock, can this information affect the price and return of other stocks?

Yes

Explanation:

Yes, because with the existence of the new information, there would be changes in attractiveness of the stock. If there are no changes in other stock prices, it, would change the expected return on this stock. If expected return was to go up, then investors would be interested in this stock, implying they would not be holding the market portfolio.

New information regarding stock attracts investors, leading to shift in portfolio of investor. With greater demand for the particular stock, revenues/prices of other stock declines. This is because, investor becomes more attracted to buying that particular stock and other stocks are sold off in the market.

answer; i believe that the correct answer is (an elevator pitch);

answer: a. the kind of population living in your neighbourhood.

the census explorer data tool by the us census bureau allows the user to zoom in on any neighbourhood within the united states and find the kind of people residing in that by race and age.  

the tool needs to needs to be used twice – once in order to find what type of people reside in a neighbourhood, and then to see the age groups of the people in the same neighbourhood.