Uji Stasioneritas Tingkat Differnsi Pertama

121 d. Laba Tahun Berjalan Null Hypothesis: DLABA has a unit root Exogenous: Constant, Linear Trend Lag Length: 2 Automatic based on SIC, MAXLAG=4 t-Statistic Prob. Augmented Dickey-Fuller test statistic -4.564662 0.0120 Test critical values: 1 level -4.667883 5 level -3.733200 10 level -3.310349 MacKinnon 1996 one-sided p-values. Warning: Probabilities and critical values calculated for 20 observations and may not be accurate for a sample size of 16 Augmented Dickey-Fuller Test Equation Dependent Variable: DLABA,2 Method: Least Squares Date: 062411 Time: 10:16 Sample adjusted: 2007Q1 2010Q4 Included observations: 16 after adjustments Variable Coefficient Std. Error t-Statistic Prob. DLABA-1 -3.849070 0.843232 -4.564662 0.0008 DLABA-1,2 1.968866 0.632056 3.115018 0.0098 DLABA-2,2 0.928163 0.341152 2.720676 0.0199 C -20297.03 134808.5 -0.150562 0.8830 TREND2006Q1 14073.81 10653.29 1.321077 0.2133 R-squared 0.814854 Mean dependent var 14524.38 Adjusted R-squared 0.747528 S.D. dependent var 380518.0 S.E. of regression 191197.4 Akaike info criterion 27.41031 Sum squared resid 4.02E+11 Schwarz criterion 27.65174 Log likelihood -214.2825 Hannan-Quinn criter. 27.42267 F-statistic 12.10311 Durbin-Watson stat 1.862517 ProbF-statistic 0.000513 122

3. Uji Stasioneritas Tingkak Differensi Kedua

a. Aset

Null Hypothesis: DASET,2 has a unit root Exogenous: Constant, Linear Trend Lag Length: 0 Automatic based on SIC, MAXLAG=4 t-Statistic Prob. Augmented Dickey-Fuller test statistic -7.425287 0.0001 Test critical values: 1 level -4.616209 5 level -3.710482 10 level -3.297799 MacKinnon 1996 one-sided p-values. Warning: Probabilities and critical values calculated for 20 observations and may not be accurate for a sample size of 17 Augmented Dickey-Fuller Test Equation Dependent Variable: DASET,3 Method: Least Squares Date: 062411 Time: 10:19 Sample adjusted: 2006Q4 2010Q4 Included observations: 17 after adjustments Variable Coefficient Std. Error t-Statistic Prob. DASET-1,2 -1.673203 0.225338 -7.425287 0.0000 C -1370749. 1416490. -0.967709 0.3496 TREND2006Q1 213144.5 118525.1 1.798307 0.0937 R-squared 0.799101 Mean dependent var 374028.8 Adjusted R-squared 0.770401 S.D. dependent var 4944899. S.E. of regression 2369423. Akaike info criterion 32.35298 Sum squared resid 7.86E+13 Schwarz criterion 32.50001 Log likelihood -272.0003 Hannan-Quinn criter. 32.36759 F-statistic 27.84334 Durbin-Watson stat 1.768957 ProbF-statistic 0.000013 123 b. Dana Pihak Ketiga DPK Null Hypothesis: DDPK,2 has a unit root Exogenous: Constant, Linear Trend Lag Length: 2 Automatic based on SIC, MAXLAG=4 t-Statistic Prob. Augmented Dickey-Fuller test statistic -5.121606 0.0053 Test critical values: 1 level -4.728363 5 level -3.759743 10 level -3.324976 MacKinnon 1996 one-sided p-values. Warning: Probabilities and critical values calculated for 20 observations and may not be accurate for a sample size of 15 Augmented Dickey-Fuller Test Equation Dependent Variable: DDPK,3 Method: Least Squares Date: 062411 Time: 10:19 Sample adjusted: 2007Q2 2010Q4 Included observations: 15 after adjustments Variable Coefficient Std. Error t-Statistic Prob. DDPK-1,2 -3.730111 0.728309 -5.121606 0.0004 DDPK-1,3 1.938457 0.587169 3.301360 0.0080 DDPK-2,3 1.143962 0.288619 3.963566 0.0027 C -1309256. 1352646. -0.967922 0.3559 TREND2006Q1 194015.2 107650.9 1.802263 0.1017 R-squared 0.940109 Mean dependent var 518461.4 Adjusted R-squared 0.916152 S.D. dependent var 6009247. S.E. of regression 1740067. Akaike info criterion 31.83795 Sum squared resid 3.03E+13 Schwarz criterion 32.07396 Log likelihood -233.7846 Hannan-Quinn criter. 31.83543 F-statistic 39.24229 Durbin-Watson stat 2.063313 ProbF-statistic 0.000004 124 c. Pembiayaan Null Hypothesis: DPEMBIAYAAN,2 has a unit root Exogenous: Constant, Linear Trend Lag Length: 0 Automatic based on SIC, MAXLAG=4 t-Statistic Prob. Augmented Dickey-Fuller test statistic -9.175418 0.0000 Test critical values: 1 level -4.616209 5 level -3.710482 10 level -3.297799 MacKinnon 1996 one-sided p-values. Warning: Probabilities and critical values calculated for 20 observations and may not be accurate for a sample size of 17 Augmented Dickey-Fuller Test Equation Dependent Variable: DPEMBIAYAAN,3 Method: Least Squares Date: 062411 Time: 10:20 Sample adjusted: 2006Q4 2010Q4 Included observations: 17 after adjustments Variable Coefficient Std. Error t-Statistic Prob. DPEMBIAYAAN-1,2 -1.734761 0.189066 -9.175418 0.0000 C -716194.5 679990.1 -1.053243 0.3101 TREND2006Q1 107449.1 56976.38 1.885853 0.0802 R-squared 0.857566 Mean dependent var 159221.3 Adjusted R-squared 0.837218 S.D. dependent var 2810426. S.E. of regression 1133900. Akaike info criterion 30.87901 Sum squared resid 1.80E+13 Schwarz criterion 31.02605 Log likelihood -259.4716 Hannan-Quinn criter. 30.89363 F-statistic 42.14563 Durbin-Watson stat 1.753675 ProbF-statistic 0.000001 125

4. Model ARIMA Terbaik a. Aset 1,2,2

Dependent Variable: DDASET Method: Least Squares Date: 061911 Time: 20:06 Sample adjusted: 2006Q4 2010Q4 Included observations: 17 after adjustments Convergence achieved after 30 iterations MA Backcast: 2006Q2 2006Q3 Variable Coefficient Std. Error t-Statistic Prob. C -413985.5 186719.8 2.217148 0.0437 AR1 -1.071793 0.125985 -8.507304 0.0000 MA2 -0.810984 0.229165 -3.538874 0.0033 R-squared 0.415453 Mean dependent var 732509.7 Adjusted R-squared 0.331946 S.D. dependent var 2952464. S.E. of regression 2413183. Akaike info criterion 32.38958 Sum squared resid 8.15E+13 Schwarz criterion 32.53661 Log likelihood -272.3114 Hannan-Quinn criter. 32.40419 F-statistic 4.975088 Durbin-Watson stat 0.975587 ProbF-statistic 0.023320 Inverted AR Roots -1.07 Estimated AR process is nonstationary Inverted MA Roots .90 -.90