Numerical results using two modified Crank-Nicolson time discretizations are presented for finite element approximations to the nonlinear parabolic equation in 1Rd, c(x,u) − (aij (x,u)u,j),i + bi (x,u)u,i = f(x,t,u), where the summation convection on repeated indices is assumed. Both...

Consumer behavior is a pervasive feature of the human circumstance, and its study has long been pursued by behaviorally oriented psychologists, among whom may be counted John B. Watson. Relatively few behaviorists have addressed these issues, however, with the result that the field of consumer...