function global_initialization()
  % initializes global variables and options for DYNARE
    
  global oo_ M_ options_ ct_ endval_ rplottype_
  
  ct_=0;
  endval_=0;

  options_.rplottype = 0;
  options_.smpl = 0;
  options_.dynatol = 0.00001;
  options_.maxit_ = 10;
  options_.slowc = 1;
  options_.timing = 0;
  options_.gstep = 1e-2;
  options_.debug = 0
  options_.initval_file = 0;
  optinos_.Schur_vec_tol = 1e-8; % used to find nonstationary variables
                                 % in Schur decomposition of the
                                 % transition matrix
				 
  if exist([M_.fname '_steadystate'])
    options_.steadystate_flag = 1;
  else
    options_.steadystate_flag = 0;
  end
  options_.steadystate_partial = [];
  
  oo_.exo_simul = [];
  oo_.endo_simul = [];
  oo_.dr = struct([]);
  oo_.exo_det_steady_state = [];
  oo_.exo_det_simul = [];