DAY = (β00 + β10*YEAR + β20*YEAR2
+ (β01 + β11*YEAR + β21*YEAR2)DOPEN)DY
+ (β02 + β12*YEAR + β22*YEAR2)DY2
+ (β02 + β12*YEAR + β22*YEAR2)DY3
+ (β03 + β13*YEAR + β23*YEAR2)DOPEN (39)
APPENDIX 4. Alternative Model Estimations
The growth model when the multiplier depends on the actual income is as follows:
GY1 = .08929 + (8.6602 -.0007297Y1)*GI1
(20.57) (4.23) (-2.21)
+.05341* (8.6602 -.0007297Y1)*(8.6602 - .0007297Y2)*GI2
(1.31) (4.23) (-2.21) (4.23) (-2.21)
- .1613*DUM89
(-15.40)
R2 = .6077 Adj.R2 = .6008
The alternative model where the total growth rate of the neighbour was used instead
of the growth in DAI was estimated to
GY1 = .05782 + (6.6010 -.0003139Y1)*GI1
(8.31) (4.41) (-1.60)
+.05837* (6.6010 -.0003139Y1)*GY2
(3.40) (4.41) (-1.60)
- .1063*DUM89
(-7.79)
R2 = .6530 Adj.R2 = .6469
Without explicit neighbor effect
GY1 = .09405 + (9.9485 -.0010719Y1)*GI1 - .1637*DUM89
(23.82) (7.08) (-2.47) (-15.60)
R2 = .5984 Adj.R2 = .5931
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