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Table 1 Synopsis of studies

From: Revisiting the nexus between fiscal decentralization and CO2 emissions in South Africa: fresh policy insights

S/N

Investigator (s)

Timeframe

Nation (s)

Technique(s)

Findings

1

Cheng and Zhu (2021)

2003–2016

China

Dynamic spatial Durbin model

Fiscal decentralization triggers CO2 emissions

2

Cheng et al. (2021)

2005–2018

China

DOLS, CCR, FMOLS

Fiscal decentralization reduces the level of emissions

3

Du and Sun (2021)

2003–2018

Chinese provinces

PSTR

Fiscal decentralization deteriorates environmental quality

4

Xiao-Sheng et al. (2021)

2007–2016

270 Chinese cities

Spatial regression methods

Fiscal decentralization impedes environmental quality

5

Xia et al. (2022a, b)

2006–2016

30 Chinese provinces

Spatial Durbin model

Fiscal decentralization increases carbon emissions

6

Yang et al. (2021a, b)

2004–2018

269 Chinese cities

Dynamic spatial Durbin model

Fiscal decentralization accelerates environmental quality

7

Xu (2022)

1995–2017

China

ARDL model

Fiscal decentralization improves environmental quality

8

Wang et al. (2021)

1984–2019

Fiscally decentralized economies

Quantile regression model, FMOLS

Fiscal decentralization decreases carbon emissions

9

Tufail et al. (2021)

1990–2018

7 OECD

CS-ARDL, AMG

Fiscal decentralization reduces carbon emissions

10

Rani (2021)

1998–2018

48 countries

MMQR, FMOLS, DOLS, FE-OLS

Fiscal decentralization improves environmental quality

11

Phan et al. (2021)

1984–2017

9 Asian economies

Dynamic panel ARDL model

Fiscal decentralization improves environmental quality

12

Lingyan et al. (2022)

1990–2019

Top 10 highly decentralized countries

MMQR

Fiscal decentralization improves environmental quality

13

Lin and Zhou (2021)

2000–2017

Chinese provinces

Fixed-effect model

Fiscal decentralization improves environmental quality

14

Li et al. (2021a, b, c)

1984–2018

Pakistan

Asymmetric ARDL model

Fiscal decentralization improves environmental quality

15

Khan et al. (2021b, a)

1990–2018

7 OECD economies

CS-ARDL

Fiscal decentralization improves environmental quality

16

Du and Sun (2021)

2003–2018

285 Chinese prefecture-level cities

PSTR

Fiscal decentralization deteriorates environmental quality

17

Su et al. (2021)

1990–2018

OECD economies

CS-ARDL

Fiscal decentralization improves environmental quality

18

Cheng et al. (2021)

2005–2018

China

DOLS, FMOLS, CCR

Fiscal decentralization reduces carbon emissions

19

Cheng et al. (2020a)

1997–2016

30 Chinese provinces

LMDI framework

Fiscal decentralization deteriorates environmental quality

20

Cheng et al. (2020b)

1997–2015

China

LMDI, dynamic panel regression model

Fiscal decentralization reduces carbon emissions

21

Chen and Liu (2020)

2003–2017

31 Chinese provinces

Spatial Durbin model

Fiscal decentralization deteriorates environmental quality

22

Chen and Chang (2020)

2003–2017

30 Chinese provinces

Spatial economic model

Fiscal decentralization reduces the level of emissions

23

Zhou and Zhang (2020)

2007–2017

30 Chinese provincial-level administrative divisions

SLM

Fiscal decentralization reduces the level of emissions

24

Wen and Lee (2020)

2003–2011

China

DID method

Fiscal decentralization reduces the level of emissions

25

Li et al. (2021b)

1984–2018

Pakistan

NARDL

Fiscal decentralization improves environmental quality

26

Hao et al. (2020)

1995–2015

China

Two-equation regression model

Fiscal decentralization decreases carbon emissions

27

Ji et al. (2021)

1990–2018

Switzerland, Spain, Germany, Canada, Belgium, Austria, and Australia

Panel data econometric tools

Fiscal decentralization escalates carbon emissions

28

Guo et al. (2020)

2009–2011

Chinese provinces

Panel data econometric tools

Fiscal decentralization escalates carbon emissions

29

Yang et al. (2020)

2003–2016

278 Chinese cities

Fixed-effect model and quantile regression

Fiscal decentralization worsens environmental quality

30

Chen and Liu (2020)

1996–2016

China

LMDI method

Fiscal decentralization increases environmental degradation

31

Yang et al. (2020)

2005–2016

China

Spatial Durbin model

Fiscal decentralization improves environmental quality

32

Khan et al. (2020a, b)

1990–2018

7 OECD countries

ARDL approach

Fiscal decentralization improves environmental quality

33

Ahmad et al. (2020)

2003–2016

10 top Chinese cities

GMM

Fiscal decentralization improves environmental quality

34

Kuai et al. (2019)

1990–2016

30 Chinese provinces

Spatial autoregression model

Fiscal decentralization intensifies level of emissions

35

Yang et al. (2019)

2005–2016

China

SDM

Fiscal decentralization worsens environmental quality

36

Liu et al. (2019)

2000–2012

30 Chinese municipalities and provinces

Hamilton function method, fixed-effect method, threshold regression

Fiscal decentralization intensifies level of emissions

37

Kuai et al. (2019)

1998–2016

31 Chinese provinces

Spatial Durbin model

Fiscal decentralization improves environmental quality

38

Mugableh (2019)

1978–2017

Jordan

ARDL and VECM

Fiscal decentralization improves environmental quality

39

Zhang et al. (2017)

1995–2012

29 Chinese provinces

GMM

Fiscal decentralization deteriorates environmental quality

40

Hector (2017)

2003–2015

Chinese low- and high-income provinces

Panel OLS

Fiscal decentralization worsens environmental quality

41

Assuncao and Schutze (2017)

1970–2006

Brazil

Prediction method

Fiscal decentralization improves environmental quality

42

He (2015)

1995–2010

Chinese provinces

System GMM

Fiscal decentralization worsens environmental quality

43

Li et al. (2013)

1991–2001

China

SBM model

Fiscal decentralization deteriorates environmental quality

44

Kim (2011)

2004–2008

South Korea

Panel analysis

Fiscal decentralization deteriorates environmental quality

45

Sigman (2007)

1979–1999

35 selected countries

Weighted least squares

Fiscal decentralization has no effect on carbon emissions

46

Konisky (2007)

1985–2000

USA

Strategic interaction models

Fiscal decentralization increases the level of emissions

47

Millimet (2003)

1920–2000

USA

Multivariate analyses of the state policy

Fiscal decentralization decreases the level of emissions

  1. DOLS Dynamic ordinary least squares; FMOLS Fully modified ordinary least squares; PSTR Panel smooth transition regression; CCR: Canonical cointegrating regression; PSTR Panel smooth transition regression; LMDI Logarithmic mean Divisia index decomposition model; SLM Spatial lag model; SDM Spatial Durbin model; DID Difference-in-difference method; ARDL Autoregressive distributed lag model; AMG Augmented mean group; MMQR Method of moments quantile regression; FE-OLS Fixed effect-ordinary least squares; NARDL Non-linear autoregressive distributed lag model; GMM Generalized method of moment framework; VECM Vector error correction model; OECD Organisation for Economic Co-operation and Development; CS-ARDL Cross-sectional augmented autoregressive distributed lag