Which of the following statements is false? a) we say a portfolio is long those stocks that have negative portfolio weights. b) the efficient portfolios are those portfolios offering the highest possible expected return for a given level of volatility. c) when two stocks are perfectly negatively correlated, it becomes possible to hold a portfolio that bears absolutely no risk. d) the lower the correlation of the securities in a portfolio the lower the volatility we can obtain.

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Need with my trade theory homework. i doubt what i wrote was right.consider a monopolistically competitive market for soft drinks in which n symmetric firms face the following demand function: q=s(1/n-b(p-(p with the straight line on which implies the marginal revenue functionmr=p-(q/sb)finally, suppose firms face the total cost functiontc=900,000+100qsuppose the market size, s, is 27,000,000, and the elasticity parameter b is 0.003.diagram the price and the average total cost in the market as a function of the number of firms. what are the equations for each curve, and why does each curve slope up or down? label the equilibrium number of firms and the equilibrium price in the diagram. why is this the equilibrium?

What additional information about the numbers used to compute this ratio might be useful in you assess liquidity? (select all that apply) (a) the maturity schedule of current liabilities (b) the average stock price for the industry (c) the average current ratio for the industry (d) the amount of current assets that is concentrated in relatively illiquid inventories