This subdirectory contains codes used for ``An Equilibrium Model of the Business Cycle with Household Production and Fiscal Policy'' by Ellen R. McGrattan, Richard Rogerson, and Randall Wright Below we give a brief description of the files. Further details are in the paper and at the top of the main routines. Please read the README_SOMETIPS file if you plan to use or modify them. For examples with geometric growth: est0495.m .M file with final estimates and standard errors est0495.mat .Mat file with final estimates and standard errors hpdata8.dat Data file hpmle.m Likelihood function and gradient hpse.m Standard errors runmle.m Calls minimization routine runse.m Calls program to compute standard errors For examples with HP-filtered data: est0495f.m .M file with final estimates and standard errors est0495f.mat .Mat file with final estimates and standard errors hpfilt.m Likelihood function and gradient hpfse.m Standard errors runfilt.m Calls minimization routine runfse.m Calls program to compute standard errors Subroutines called: hp7u.m Utility function sshp4b.m Steady-state first-order conditions grad7.m Gradient of state vector Routines for minimization: uncmin.m unconstrained minimization routine (see options inside) umlnmin.m subroutine of uncmin.m umstop.m subroutine of uncmin.m