Give three important and materially different reasons why Google typically only delivers a fraction of matching pages? For example, some words, like "money" or "sports", appear on billions of webpages yet Google only delivers a few hundred actual search results for them.

Your mother's well-diversified portfolio has an expected return of 12.0% and a beta of 1.20. she is in the process of buying 100 shares of safety corp. at $10 a share and adding it to her portfolio. safety has an expected return of 15.0% and a beta of 2.00. the total value of your current portfolio is $9,000. what will the expected return and beta on the portfolio be after the purchase of the safety stock?

Happy foods and general grains both produce similar puffed rice breakfast cereals. for both companies, thecost of producing a box of cereal is 45 cents, and it is not possible for either company to lower their productioncosts any further. how can one company achieve a competitive advantage over the other?

Label each of the following statements true, false, or uncertain. explain your choice carefully. a. workers benefit equally from the process of creative destruction. b. in the past two decades, the real wages of low-skill u.s. workers have declined relative to the real wages of high-skill workers. c. technological progress leads to a decrease in employment if, and only if, the increase in output is smaller than the increase in productivity. d. the apparent decrease in the natural rate of unemployment in the united states in the second-half of the 1990s can be explained by the fact that productivity growth was unexpectedly high during that period.