Dependent Variable: LOG(ASKY)
Method: Least Squares
Date: 09/19/04 Time: 12:03
Sample: 2001 2010
Included observations: 10
Coefficient Std. Error t-Statistic Prob.
LOG(SYKY) 0.938348 0.018104 51.83055 0.0000
R-squared -80.652052 Mean dependent var 8.733254
Adjusted R-squared -80.652052 S.D. dependent var 0.058869
S.E. of regression 0.531953 Akaike info criterion 1.670115
Sum squared resid 2.546762 Schwarz criterion 1.700373
Log likelihood -7.350573 Hannan-Quinn criter. 1.636921
Durbin-Watson stat 0.433457
请问可决系数为什么为负,这个模型存在什么问题?