Choose two American companies from two different sectors, the first is industrial and the second is my services, and find the company's website and data, and all the information about the last bond issued by the company, which is par, mat, Cr, price, Ytm and calculate the duration of the bond - Mod duration, pond price elasticity if intrest increase 1% and decrease 1%, portfolio a / b, weight 35%, 65%, portfolio duration? and calculate cash flow maturity 7 year