Your portfolio is comprised of 40 percent of stock X, 15 percent of stock Y, and 45 percent of stock Z. Stock X has a beta of 1.24, stock Y has a beta of 1.49, and stock Z has a beta of 0.41. What is the beta of your portfolio?

Portfolio beta = 0.904

Explanation:

The portfolio beta is the weighted average of all the beta associated with each of the different stock making up the portfolio. The betas are weighted using the probability associated with each of the stock.  

Portfolio beta = WaRa + Wb+Rb + Wn+Rn  

W- weight of the beta, R- Stock beta -  

W- Probability of the beta, R- stock beta

Note that the sum of the probability of different outcomes should equal to one. Hence, the probability of economy being normal is

Portfolio beta = (0.4 × 1.24)  + (0.15 × 1.49) +  ( 0.45 ×0.41) =0.904

Portfolio beta = 0.904

in 2001, dell computer became the world’s largest personal computer vendor, continuing to

gain market share and post profits in an industry struggling with slumping sales and billions of

dollars in losses. dell sells 90% of its pcs directly to the final customer, largely bypassing the

reseller channel that accounts for most of the world’s pc sales. this direct customer relationship

is the key to dell’s business model, and provides distinct advantages over the indirect sales

model. dell’s direct relationship with the customer allows it to tailor its offerings to customer

needs, offer add-on products and services, and use the internet to offer a variety of customer

services. in addition, dell’s pcs are built to customers’ specifications upon receipt of an order,

giving dell additional advantages over indirect pc vendors who must try to forecast demand and

ship products based on those forecasts. dell’s direct sales and build-to-order model has achieved

superior performance in the pc industry in terms of inventory turnover, reduced overhead, cash

conversion, and return on investment (kraemer, et al., 2000).

explanation:

fractionally backed paper money

fiat money

paper money

metallic money