Environmental efficiency by countries (N = 40) and years (1990–2019). Specification B
| Country | Cobb–Douglas | Cobb–Douglas | Cobb–Douglas | Translog | Translog | Translog |
|---|---|---|---|---|---|---|
| Without institutions | With QG indicator (mean) | With ICRG indicator (mean) | Without institutions | With QG indicator (mean) | With ICRG indicator (mean) | |
| Albania | 0.7296 | 0.4929 | 0.5380 | 0.7900 | 0.5898 | 0.6658 |
| Armenia | 0.6849 | 0.5318 | 0.5750 | 0.7525 | 0.5255 | 0.6020 |
| Austria | 0.8643 | 0.9130 | 0.8647 | 0.8146 | 0.9344 | 0.8932 |
| Azerbaijan | 0.7301 | 0.5821 | 0.6363 | 0.7792 | 0.4416 | 0.5495 |
| Belarus | 0.8005 | 0.5997 | 0.6807 | 0.7972 | 0.6437 | 0.7553 |
| Belgium | 0.8818 | 0.9121 | 0.8698 | 0.8141 | 0.9212 | 0.8741 |
| Bulgaria | 0.9160 | 0.8524 | 0.8805 | 0.9017 | 0.8439 | 0.8928 |
| Croatia | 0.8316 | 0.7304 | 0.7350 | 0.8158 | 0.8070 | 0.8036 |
| Cyprus | 0.8231 | 0.8612 | 0.7955 | 0.8129 | 0.8842 | 0.8416 |
| Czech Republic | 0.7829 | 0.7549 | 0.7122 | 0.7478 | 0.7578 | 0.7059 |
| Denmark | 0.8993 | 0.9292 | 0.8939 | 0.8257 | 0.9413 | 0.9033 |
| Estonia | 0.8527 | 0.7966 | 0.7795 | 0.8071 | 0.8555 | 0.8122 |
| Finland | 0.8900 | 0.9225 | 0.8934 | 0.8081 | 0.9075 | 0.8610 |
| France | 0.8940 | 0.9072 | 0.8709 | 0.8680 | 0.9274 | 0.9061 |
| Germany | 0.8800 | 0.9051 | 0.8651 | 0.8327 | 0.9212 | 0.8888 |
| Greece | 0.7992 | 0.7617 | 0.7278 | 0.7874 | 0.7732 | 0.7437 |
| Hungary | 0.8747 | 0.8362 | 0.8307 | 0.8432 | 0.8767 | 0.8680 |
| Iceland | 0.8905 | 0.9261 | 0.8971 | 0.8154 | 0.9334 | 0.8956 |
| Ireland | 0.9408 | 0.9559 | 0.9434 | 0.8542 | 0.9357 | 0.9150 |
| Italy | 0.8403 | 0.8417 | 0.8100 | 0.8218 | 0.8792 | 0.8503 |
| Kazakhstan | 0.7722 | 0.6042 | 0.6768 | 0.7925 | 0.6283 | 0.7234 |
| Latvia | 0.7968 | 0.7012 | 0.6820 | 0.7833 | 0.7222 | 0.6969 |
| Lithuania | 0.8940 | 0.8369 | 0.8307 | 0.8847 | 0.9074 | 0.9102 |
| Luxembourg | 0.8548 | 0.9257 | 0.8884 | 0.8201 | 0.9268 | 0.8991 |
| Montenegro | 0.8809 | 0.8354 | 0.8133 | 0.9417 | 0.8857 | 0.8822 |
| Norway | 0.9191 | 0.9526 | 0.9316 | 0.8632 | 0.9670 | 0.9499 |
| Poland | 0.8946 | 0.8567 | 0.8573 | 0.8613 | 0.8804 | 0.8988 |
| Portugal | 0.7362 | 0.7484 | 0.6897 | 0.7464 | 0.7576 | 0.6972 |
| Republic of Mold | 0.5920 | 0.4389 | 0.4784 | 0.7466 | 0.4924 | 0.5533 |
| Romania | 0.8452 | 0.6967 | 0.7420 | 0.8186 | 0.6712 | 0.7429 |
| Russian Federation | 0.6886 | 0.5206 | 0.5477 | 0.7439 | 0.5005 | 0.5571 |
| Serbia | 0.6969 | 0.5270 | 0.5480 | 0.7315 | 0.5782 | 0.6171 |
| Slovakia | 0.8504 | 0.8202 | 0.8047 | 0.8132 | 0.8748 | 0.8525 |
| Slovenia | 0.7938 | 0.8065 | 0.7567 | 0.7911 | 0.8516 | 0.8116 |
| Spain | 0.8550 | 0.8588 | 0.8131 | 0.8220 | 0.8892 | 0.8515 |
| Sweden | 0.8663 | 0.9163 | 0.8746 | 0.7995 | 0.9381 | 0.8996 |
| Switzerland | 0.8440 | 0.9175 | 0.8660 | 0.7777 | 0.9138 | 0.8634 |
| Turkey | 0.8982 | 0.8216 | 0.8266 | 0.8454 | 0.8172 | 0.8466 |
| Ukraine | 0.5678 | 0.3953 | 0.4440 | 0.7311 | 0.3968 | 0.4818 |
| United Kingdom | 0.8916 | 0.9162 | 0.8816 | 0.8494 | 0.9327 | 0.9033 |
| Mean (HI) | 0.8580 | 0.8643 | 0.8317 | 0.8179 | 0.8847 | 0.8533 |
| Mean (LMI) | 0.6148 | 0.4553 | 0.4991 | 0.7434 | 0.4715 | 0.5457 |
| Mean (UMI) | 0.7962 | 0.6540 | 0.6892 | 0.8092 | 0.6643 | 0.7240 |
| Mean (Full) | 0.8232 | 0.7780 | 0.7689 | 0.8100 | 0.7954 | 0.7959 |
| Country | Cobb–Douglas | Cobb–Douglas | Cobb–Douglas | Translog | Translog | Translog |
|---|---|---|---|---|---|---|
| Without institutions | With QG indicator (mean) | With ICRG indicator (mean) | Without institutions | With QG indicator (mean) | With ICRG indicator (mean) | |
| Albania | 0.7296 | 0.4929 | 0.5380 | 0.7900 | 0.5898 | 0.6658 |
| Armenia | 0.6849 | 0.5318 | 0.5750 | 0.7525 | 0.5255 | 0.6020 |
| Austria | 0.8643 | 0.9130 | 0.8647 | 0.8146 | 0.9344 | 0.8932 |
| Azerbaijan | 0.7301 | 0.5821 | 0.6363 | 0.7792 | 0.4416 | 0.5495 |
| Belarus | 0.8005 | 0.5997 | 0.6807 | 0.7972 | 0.6437 | 0.7553 |
| Belgium | 0.8818 | 0.9121 | 0.8698 | 0.8141 | 0.9212 | 0.8741 |
| Bulgaria | 0.9160 | 0.8524 | 0.8805 | 0.9017 | 0.8439 | 0.8928 |
| Croatia | 0.8316 | 0.7304 | 0.7350 | 0.8158 | 0.8070 | 0.8036 |
| Cyprus | 0.8231 | 0.8612 | 0.7955 | 0.8129 | 0.8842 | 0.8416 |
| Czech Republic | 0.7829 | 0.7549 | 0.7122 | 0.7478 | 0.7578 | 0.7059 |
| Denmark | 0.8993 | 0.9292 | 0.8939 | 0.8257 | 0.9413 | 0.9033 |
| Estonia | 0.8527 | 0.7966 | 0.7795 | 0.8071 | 0.8555 | 0.8122 |
| Finland | 0.8900 | 0.9225 | 0.8934 | 0.8081 | 0.9075 | 0.8610 |
| France | 0.8940 | 0.9072 | 0.8709 | 0.8680 | 0.9274 | 0.9061 |
| Germany | 0.8800 | 0.9051 | 0.8651 | 0.8327 | 0.9212 | 0.8888 |
| Greece | 0.7992 | 0.7617 | 0.7278 | 0.7874 | 0.7732 | 0.7437 |
| Hungary | 0.8747 | 0.8362 | 0.8307 | 0.8432 | 0.8767 | 0.8680 |
| Iceland | 0.8905 | 0.9261 | 0.8971 | 0.8154 | 0.9334 | 0.8956 |
| Ireland | 0.9408 | 0.9559 | 0.9434 | 0.8542 | 0.9357 | 0.9150 |
| Italy | 0.8403 | 0.8417 | 0.8100 | 0.8218 | 0.8792 | 0.8503 |
| Kazakhstan | 0.7722 | 0.6042 | 0.6768 | 0.7925 | 0.6283 | 0.7234 |
| Latvia | 0.7968 | 0.7012 | 0.6820 | 0.7833 | 0.7222 | 0.6969 |
| Lithuania | 0.8940 | 0.8369 | 0.8307 | 0.8847 | 0.9074 | 0.9102 |
| Luxembourg | 0.8548 | 0.9257 | 0.8884 | 0.8201 | 0.9268 | 0.8991 |
| Montenegro | 0.8809 | 0.8354 | 0.8133 | 0.9417 | 0.8857 | 0.8822 |
| Norway | 0.9191 | 0.9526 | 0.9316 | 0.8632 | 0.9670 | 0.9499 |
| Poland | 0.8946 | 0.8567 | 0.8573 | 0.8613 | 0.8804 | 0.8988 |
| Portugal | 0.7362 | 0.7484 | 0.6897 | 0.7464 | 0.7576 | 0.6972 |
| Republic of Mold | 0.5920 | 0.4389 | 0.4784 | 0.7466 | 0.4924 | 0.5533 |
| Romania | 0.8452 | 0.6967 | 0.7420 | 0.8186 | 0.6712 | 0.7429 |
| Russian Federation | 0.6886 | 0.5206 | 0.5477 | 0.7439 | 0.5005 | 0.5571 |
| Serbia | 0.6969 | 0.5270 | 0.5480 | 0.7315 | 0.5782 | 0.6171 |
| Slovakia | 0.8504 | 0.8202 | 0.8047 | 0.8132 | 0.8748 | 0.8525 |
| Slovenia | 0.7938 | 0.8065 | 0.7567 | 0.7911 | 0.8516 | 0.8116 |
| Spain | 0.8550 | 0.8588 | 0.8131 | 0.8220 | 0.8892 | 0.8515 |
| Sweden | 0.8663 | 0.9163 | 0.8746 | 0.7995 | 0.9381 | 0.8996 |
| Switzerland | 0.8440 | 0.9175 | 0.8660 | 0.7777 | 0.9138 | 0.8634 |
| Turkey | 0.8982 | 0.8216 | 0.8266 | 0.8454 | 0.8172 | 0.8466 |
| Ukraine | 0.5678 | 0.3953 | 0.4440 | 0.7311 | 0.3968 | 0.4818 |
| United Kingdom | 0.8916 | 0.9162 | 0.8816 | 0.8494 | 0.9327 | 0.9033 |
| Mean (HI) | 0.8580 | 0.8643 | 0.8317 | 0.8179 | 0.8847 | 0.8533 |
| Mean (LMI) | 0.6148 | 0.4553 | 0.4991 | 0.7434 | 0.4715 | 0.5457 |
| Mean (UMI) | 0.7962 | 0.6540 | 0.6892 | 0.8092 | 0.6643 | 0.7240 |
| Mean (Full) | 0.8232 | 0.7780 | 0.7689 | 0.8100 | 0.7954 | 0.7959 |
Source(s): Authors own creation
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