Policy Inducement Effects in Energy Efficiency Technologies. An Empirical Analysis of the Residential Sector - Green Energy and Efficiency: An Economic Perspective - page 218

Table 4 The role of the energy and environmental systems
(1)

(2) (3) (4) (5) (6) (7) (8)

Patent
count in
EE-total

Patent count
in EE-
building

Patent
count in
EE-lighting

Patent count
in EE-elec.
appl.

Patent
count in
EE-total

Patent count
in EE-
building

Patent
count in
EE-lighting

Patent count
in EE-elec.
appl.

Stock of GERD 0.50*** 0.49*** 0.73*** 0.81*** 0.53*** 0.52*** 0.84*** 0.87***

(7.67) (7.20) (6.14) (6.77) (7.39) (6.81) (6.32) (6.96)

Price-tax bundle 0.17** 0.11 0.60*** 0.81*** 0.15* 0.09 0.54*** 0.74***

(2.06) (1.28) (4.60) (5.12) (1.73) (1.01) (3.97) (4.54)

Energy intensity inter-
acted with nuclear
production

0.02 0.06 0.32* 0.66*** 0.05 0.09 0.23 0.58**

− − − −

(0.21) (0.77) ( − 1.83) ( − 2.81) (0.53) (1.01) ( − 1.29) ( − 2.50)

CO 2 emissions in resi-
dential sector

0.05 0.05 0.20* 0.12

− − − −

( − 0.86) ( − 0.82) ( − 1.72) ( − 1.24)

Stock of EE policy — 0.22*** 0.21***

total

(8.39) (7.44)

Stock of EE policy —
building

0.20*** 0.19***

(5.62) (4.85)

Stock of EE policy — 0.39*** 0.33***

lighting

(4.40) (3.51)

Stock of EE policy —
elec. app.

0.59*** 0.56***

(7.64) (6.82)

Constant 5.55*** 5.59*** 8.79*** 9.86*** 5.86*** 5.93*** 9.86*** 10.53***

− − − − − − − −

( − 5.76) ( − 5.58) ( − 5.14) ( − 6.24) ( − 5.75) ( − 5.51) ( − 5.40) ( − 6.37)