Get the daily adjusted closing prices for all securities for Jan 1 2017 - Jan 1 2020, and use that data to construct returns, covariance matrix, and covariance contribution matrix. Use the following questions to help guide the further building of your spreadsheet. What is the daily variance of the risky portfolio that has 25% weight in each of VTI, VWO, VCIT, and VEU? (6 decimal places)

Acompany that makes shopping carts for supermarkets and other stores recently purchased some new equipment that reduces the labor content of the jobs needed to produce the shopping carts. prior to buying the new equipment, the company used 6 workers, who produced an average of 79 carts per hour. workers receive $16 per hour, and machine coast was $49 per hour. with the new equipment, it was possible to transfer one of the workers to another department, and equipment cost increased by $11 per hour while output increased by four carts per hour. a) compute the multifactor productivity (mfp) (labor plus equipment) under the prior to buying the new equipment. the mfp (carts/$) = (round to 4 decimal places). b) compute the productivity changes between the prior to and after buying the new equipment. the productivity growth = % (round to 2 decimal places)