Consider the following adjusted closing stock prices for Johnson and Johnson (J&J) and Caterpillar, Inc. Compute and compare the monthly returns for both companies.
Date....................... J&J................... Caterpillar
March 2011............ 60.70........................ 99.86
February 2011......... 61.44........................102.93
January 2011........... 59.23......................... 97.01
December 2010........ 61.30......................... 93.22
november 2010........ 61.00......................... 84.20
October 2010.......... 62.63........................ 78.23