Abstract
This paper explores how environmental taxation affects wage inequality in the presence of subsidizing renewable energy. It is necessary to take both traditional dirty energy and renewable energy into account. Take the case where the renewable energy sector is more skill-intensive than the traditional energy sector as an example. If the final product sector is more skill-intensive than the whole energy sector, an increment of the output tax in the traditional energy sector will widen wage inequality unambiguously. However, if the final product sector is less skill-intensive than the whole energy sector, an increment of the output tax in the traditional energy sector may narrow down wage inequality when the substitution elasticity between energy and labor in the final product sector is sufficiently large. The interaction between environmental taxation and subsidization on renewable energy plays a key role in the mechanism. We also analyze the relationship between environmental taxation and welfare.
Acknowledgment
We are very grateful to the editor Till Requate and two anonymous reviewers for their insightful comments and detailed suggestions on improving this paper.
Appendix A: The Detail of the Empirical Analysis
We consider some reduced-form regressions of wage inequality on the energy structure.[12] The results are shown in Table A1. In Panel A, we use the database covering G20 nations to investigate the correlation between wage inequality and the energy structure. In Panel B, the database is extended to all the countries that we have obtained the data.
Wages inequality regressed on the energy structure.
| Dependent variable: industrial theil index of wage | ||||
|---|---|---|---|---|
| (1) | (2) | (3) | (4) | |
| Panel A: data from G20 | ||||
| Renewable energy consumption share | 0.00112b | 0.00100b | ||
| (16.88) | (7.00) | |||
| Renewable energy output share | 0.00035b | 0.00038b | ||
| (5.98) | (4.80) | |||
| Skilled labor share | −0.00059b | −0.00098b | ||
| (−4.16) | (−7.20) | |||
| Observations | 413 | 413 | 123 | 123 |
| R-squared | 0.41 | 0.08 | 0.52 | 0.44 |
| Countries | 19 | 19 | 15 | 15 |
| Panel B: data covering countries beyond G20 | ||||
| Renewable energy consumption share | 0.000478b | 0.000422a | ||
| (9.119) | (2.465) | |||
| Renewable energy output share | 0.000412b | 0.000412b | ||
| (9.727) | (3.991) | |||
| Skilled labor share | −0.000636a | −0.000608a | ||
| (−2.542) | (−2.488) | |||
| Observations | 1976 | 1976 | 486 | 486 |
| R-squared | 0.040 | 0.046 | 0.033 | 0.053 |
| Countries | 117 | 117 | 82 | 82 |
-
t-statistics in parentheses. ap<0.05, bp<0.01.
In columns (1) and (2), we regress industrial wage inequality on the energy consumption structure and the energy output structure, respectively. In both Panel A and Panel B, the coefficients of the energy structure are significant. However, once more countries are considered in Panel B, the coefficients are much smaller. The reason is that the energy structure and wage inequality in most less developed countries change little in our sample.
In columns (3) and (4), we control for the labor structure. We define skilled labor as workers who at least have completed post-secondary education. The share of skilled labor in the population over 25 years old are used to represent the labor structure.[13] A higher share of skilled labor implies a relative higher skilled labor supply, which may generate a negative effect on the skilled wage and thereby on wage inequality. The results show that the coefficients of the energy structure are significant and stable with respect to columns (1) and (2). The coefficients of the skilled labor share are negative, which is in accordance with our intuition.
Appendix B: The Impacts of Environmental Taxation on the Wages and the Wage Gap
Totally differentiating Eqs. (4)–(10) and rearrange the results into the matrix form, we obtain:
where
We use Δ to denote the determinant of the coefficient matrix of Eq. (A1). When
where
Combining Eqs. (A2) and (A3), we obtain the impact of t C on the wage gap:
From Eq. (A4), as Δ < 0 holds (see Appendix C), when A
1 < 0 and λ
UX − λ
SX < 0, then
When
Combining Eqs. (A5) and (A6), we obtain the impact of t F on the wage gap:
From Eq. (A7), when A
1 < 0 and λ
UX − λ
SX < 0, then
Appendix C: The Dynamic Adjustment Process of the Model
Following the method of Konishi, Okuno-Fujiwara, and Suzumura (1990) and Beladi, Chaudhuri, and Yabuuchi (2008), we construct the dynamic adjustment system according to Eqs. (4)–(10) as follows:
where d
i
(i = 1, …, 7) denotes the speed of adjustment and d
i
> 0. The notation “⋅” denotes the differentiation with respect to time t (e.g.
According to the Routh–Hurwitz theorem,
Appendix D: The Impacts of Environmental Taxation on Emissions
Differentiating Eqs. (7)–(9), we have:
Combining Eqs. (A16)–(A18) and solving the subsystem, we obtain:
Since a ij is a function of prices w S , w U , and p E , Eq. (A19) can be rewritten as:
where
If σ LEX = 0, combining Eqs. (A4), (A7) and (A20), we obtain:
If σ
LEX is large enough,
Differentiating Eq. (4), we have:
Combining Eqs. (A2), (A3), (A23) and (A24), if σ LEX is large enough, the impact of t C on C is approximate to:
From Eq. (A25), if λ
UX − λ
SX = 0 and
Appendix E: The Comparison Between Two Types of Environmental Taxation
Combining Eqs. (A4) and (A7), we have:
If η C = η F , we have:
Combining Eq. (A27),
Thus, when η
C
= η
F
,
If ϕ
C
= θ
FC
ϕ
F
, combining with
Thus, when ϕ
C
=θ
FC
ϕ
F
,
If t C = t F , we have:
Appendix F: Discussion About the Rules of Taxation and Subsidization
To prove the equivalence between an increment of environmental taxation and an increment of the subsidy on renewable energy, we take the output tax on traditional energy for example.
When the government takes the output tax as an instrument, the impacts of the environmental tax are solved by the following system:
Thus, the impact of the output tax on the skilled wage can be written as
When the government takes the subsidy on renewable energy as an instrument, the impacts of the subsidy are solved by the following system:
Thus, the impact of the subsidy on the skilled wage can be written as
Therefore, it is clear that
The situation where the emission tax is levied is similar.
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Articles in the same Issue
- Frontmatter
- Research Articles
- Overconfidence and Public Intoxication Arrest: Evidence from a University Town Police Log
- The Changing Determinants of Juvenile Crime
- Failing Young and Temporary Workers? The Impact of a Disruptive Crisis on a Dual Labour Market
- Productivity, Innovation Spillovers, and Mergers: Evidence from a Panel of U.S. Firms
- Trade Policies and FDI with an Endogenous Market Structure
- Is There a Business Cycle Effect on the Incidence of Dual Job Holding?
- The Impact of Environmental Taxation on Wage Inequality in the Presence of Subsidizing Renewable Energy
- The Competitive Foundations of Price Cap Regulation
- Letters
- Exploring the Existence of a Short-Run Kuznets Curve: Does the Fourth Industrial Revolution Affect Income distribution?
- MRS Functions and the Pareto Interval in Public Good Provision
- Optimal Imprisonment with General Enforcement of Law
- Immigration and Perceived Social Position. Insights from an Unintended Survey Experiment
Articles in the same Issue
- Frontmatter
- Research Articles
- Overconfidence and Public Intoxication Arrest: Evidence from a University Town Police Log
- The Changing Determinants of Juvenile Crime
- Failing Young and Temporary Workers? The Impact of a Disruptive Crisis on a Dual Labour Market
- Productivity, Innovation Spillovers, and Mergers: Evidence from a Panel of U.S. Firms
- Trade Policies and FDI with an Endogenous Market Structure
- Is There a Business Cycle Effect on the Incidence of Dual Job Holding?
- The Impact of Environmental Taxation on Wage Inequality in the Presence of Subsidizing Renewable Energy
- The Competitive Foundations of Price Cap Regulation
- Letters
- Exploring the Existence of a Short-Run Kuznets Curve: Does the Fourth Industrial Revolution Affect Income distribution?
- MRS Functions and the Pareto Interval in Public Good Provision
- Optimal Imprisonment with General Enforcement of Law
- Immigration and Perceived Social Position. Insights from an Unintended Survey Experiment