"This paper provides evidence of a problem with the influential testing and assessment of Solow's (1956) growth model proposed by Mankiw et al. (1992) and a series of subsequent papers evaluating the latter. First, the assumption of a common rate of technical progress maintained by Mankiw et al....

This paper shows that because growth models in the tradition of Solow's and Romer's are framed in terms of production functions, they are equally subject to a criticism developed by, among others, Phelps Brown (1957), Simon (1979a), and Samuelson (1979). These authors argued that production...