Suppose you borrow at the risk-free rate an amount equal to your initial wealth and invest in a portfolio with an expected return of 20 percent and a standard deviation of returns of 16 percent. The risk-free asset has an interest rate of 4 percent. Calculate the standard deviation of the resulting portfolio.

Which of the following is not an example of one of the four mail advantages of prices on a free market economy

Solomon chemical company makes three products, b7, k6, and x9, which are joint products from the same materials. in a standard batch of 320,000 pounds of raw materials, the company generates 70,000 pounds of b7, 150,000 pounds of k6, and 100,000 pounds of x9. a standard batch costs $3,840,000 to produce. the sales prices per pound are $10, $14, and $20 for b7, k6, and x9, respectively. (a) allocate the joint product cost among the three final products using weight as the allocation base. (b) allocate the joint product cost among the three final products using market value as the allocation base. (c) allocate the joint product cost among the three final products using weight as the allocation base.

Which external factor has enabled addition of special effects in advertisements and tracking of responses of customers over websites?