Shifting perceptions and legal mandates increase the probability that postsecondary instructors will have blind and visually impaired students in their classrooms. The graphical and symbolic notations used in economics present special problems in communication.

A stochastic frontier approach is used to examine efficiency of the U.S. manufacturing sector over the 1958 – 1996 time period. A National Bureau of Economic Research (NBER) panel data set was used to estimate a translog cost frontier. Both fixed effects and random effects models were...