diff --git a/tests/arima/mod1.mod b/tests/arima/mod1.mod
index fa9475b0320e06e8dc3b4c3c099cdf9e3279e9ce..8d63f6e9a4c56faeda9eb51f0aa45efcc2a26b9e 100644
--- a/tests/arima/mod1.mod
+++ b/tests/arima/mod1.mod
@@ -18,6 +18,13 @@ var e_x; stderr 0.01;
 var e_y; stderr 0.01;
 end;
 
+steady_state_model;
+dx=0;
+x=0;
+dy=0;
+y=0;
+end;
+
 stoch_simul(order=1,periods=1000,irf=0,nomoments);
 
 datatomfile('data1',[]);
\ No newline at end of file
diff --git a/tests/arima/mod1a.mod b/tests/arima/mod1a.mod
index 4ba45c626534be25b43dd528f3c120e680766dce..9020522def827d1d2cd16f32df62249670891071 100644
--- a/tests/arima/mod1a.mod
+++ b/tests/arima/mod1a.mod
@@ -11,6 +11,11 @@ dx = rho_x*dx(-1)+e_x;
 dy = rho_y*dy(-1)+e_y;
 end;
 
+steady_state_model;
+dx=0;
+dy=0;
+end;
+
 estimated_params;
 rho_x,NORMAL_PDF,0.5,0.1;
 rho_y,NORMAL_PDF,-0.3,0.1;
diff --git a/tests/arima/mod1b.mod b/tests/arima/mod1b.mod
index 829263a333d2c25ecba3fdc783e2a858526d67f3..ba439aa0b089501fb75f2168cfae2db033477530 100644
--- a/tests/arima/mod1b.mod
+++ b/tests/arima/mod1b.mod
@@ -13,6 +13,13 @@ x = x(-1)+dx;
 y = y(-1)+dy;
 end;
 
+steady_state_model;
+dx=0;
+x=0;
+dy=0;
+y=0;
+end;
+
 estimated_params;
 rho_x,NORMAL_PDF,0.5,0.1;
 rho_y,NORMAL_PDF,-0.3,0.1;
diff --git a/tests/arima/mod1c.mod b/tests/arima/mod1c.mod
index 3b7e21fde4fc9e98dbf7cd61a3a65c36300b9b78..527015edd1d765b393daa31f9682ae76e3063311 100644
--- a/tests/arima/mod1c.mod
+++ b/tests/arima/mod1c.mod
@@ -13,6 +13,13 @@ x = x(-1)+dx;
 y = y(-1)+dy;
 end;
 
+steady_state_model;
+dx=0;
+x=0;
+dy=0;
+y=0;
+end;
+
 estimated_params;
 rho_x,NORMAL_PDF,0.5,0.1;
 rho_y,NORMAL_PDF,-0.3,0.1;
diff --git a/tests/arima/mod2.mod b/tests/arima/mod2.mod
index 6c0a3c77df9f6bc8a1985794cd1ba66355e4ffe9..5e9abd03d6551302af04f0c9f1dd7555903e638e 100644
--- a/tests/arima/mod2.mod
+++ b/tests/arima/mod2.mod
@@ -16,6 +16,13 @@ x = x(-1)+dx;
 y = y(-1)+dy;
 end;
 
+steady_state_model;
+dx=0;
+x=0;
+dy=0;
+y=0;
+end;
+
 shocks;
 var e_x; stderr 0.01;
 var e_y; stderr 0.01;
diff --git a/tests/arima/mod2a.mod b/tests/arima/mod2a.mod
index 305f4f2bd352772dd919f107d067d282c89666d2..18eaa2b522b383611d434f2665fd0d8e573b37a2 100644
--- a/tests/arima/mod2a.mod
+++ b/tests/arima/mod2a.mod
@@ -16,6 +16,13 @@ x = x(-1)+dx;
 y = y(-1)+dy;
 end;
 
+steady_state_model;
+dx=0;
+x=0;
+dy=0;
+y=0;
+end;
+
 estimated_params;
 rho_x,NORMAL_PDF,0.5,0.1;
 rho_y,NORMAL_PDF,-0.3,0.1;
diff --git a/tests/arima/mod2b.mod b/tests/arima/mod2b.mod
index ffe3e5362b0473242aecdb1e5b7b2f13e1935596..432e851d1febfecffe1e6dbb65860568dd6a1d4a 100644
--- a/tests/arima/mod2b.mod
+++ b/tests/arima/mod2b.mod
@@ -16,6 +16,13 @@ x = x(-1)+dx;
 y = y(-1)+dy;
 end;
 
+steady_state_model;
+dx=0;
+x=0;
+dy=0;
+y=0;
+end;
+
 estimated_params;
 rho_x,NORMAL_PDF,0.5,0.1;
 rho_y,NORMAL_PDF,-0.3,0.1;
diff --git a/tests/arima/mod2c.mod b/tests/arima/mod2c.mod
index 1769080e19f6485d8d86c028ca0c0817e67b9dbb..132a3887b8360e5aa57809d0fbf6f7cc8cfe0bc4 100644
--- a/tests/arima/mod2c.mod
+++ b/tests/arima/mod2c.mod
@@ -15,6 +15,12 @@ dy = rho_y*dy(-1)+a2*coint_err(-1)+e_y;
 coint_err = dx-b*dy+coint_err(-1);
 end;
 
+steady_state_model;
+dx=0;
+dy=0;
+coint_err=0;
+end;
+
 estimated_params;
 rho_x,NORMAL_PDF,0.5,0.1;
 rho_y,NORMAL_PDF,-0.3,0.1;
diff --git a/tests/decision_rules/ar_qz_test.mod b/tests/decision_rules/ar_qz_test.mod
index 8df84b8f567ca63fc8194bad2ad2742836ea6a3a..7c518483567cbd8aaeac7c9d44df2777e4e53dbb 100644
--- a/tests/decision_rules/ar_qz_test.mod
+++ b/tests/decision_rules/ar_qz_test.mod
@@ -11,6 +11,12 @@ ar1=phi*ar1(-1)+e;
 junk=0.9*junk(+1);
 end;
 
+steady_state_model;
+white_noise=0;
+ar1=0;
+junk=0;
+end;
+
 shocks;
 var e = 1;
 end;