financial mathematics, please using Matlab thanks a lot ! The datafile is here https://www.dropbox.com/s/iirihvcbeekjh70/Data%20file%20%5BEdited_%2006_10_17%5D%20-%20Dow_2004_2010.csv?dl=0

PORTFOLIO THEORY Consider for this question and the required plots only the GFC period 03/01/2007 31/12/2010. However, you might need to investigate the "normal" non-GFC period as well to justify any claims/interpretations you want to draw form your results 2. Determine which investors short sell in this market consisting of the stocks used to calculate the Dow Jones Index and which funds they short sell. Are there any funds which no-one will short sell or which evervone will short sell? 3. Carry out the following computational tasks for an optimal portfolio P* consisting of the 28 stocks included in the Dow Jones for an agent who wants to invest $200,000 and has a risk factor of t 0.15 (excluding Visa and Dow & Du Pont) (i) Obtain the dollar investment in each of the stocks and obtain the corresponding expected (ii) Obtain the -plane graphical representation and include (all on the same graph) return and risk of P* (a) The stocks of the Dow Jones (b) The minimum variance and efficient frontiers. Use a t-range 0.35 for your display (c) A plot of 1000 random feasible portfolios satisfying |x1-20 (for each of the 28 stocks) and