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Ways to optimize U.S. climate policy design for a just energy transition

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A brand new MIT Joint Program examine exhibits how U.S. climate insurance policies could be designed to lower carbon emissions with out inflicting financial hurt on low-income households and the nation as a complete. Credit: Amanda Griffiths/Climate XChange

In November, inflation hit a 39-year excessive within the United States. The shopper worth index was up 6.8 p.c from the earlier 12 months due to main will increase in the price of lease, meals, motor autos, gasoline, and different widespread family bills. While inflation impacts your entire nation, its results usually are not felt equally. At best danger are low- and middle-income Americans who might lack ample monetary reserves to take in such financial shocks.

Meanwhile, scientists, economists, and activists throughout the political spectrum proceed to advocate for one other potential systemic financial change that many concern may even put lower-income Americans in danger: the imposition of a nationwide carbon worth, charge, or tax. Framed by proponents as probably the most environment friendly and cost-effective approach to scale back and meet climate targets, a carbon penalty would incentivize producers and shoppers to shift expenditures away from carbon-intensive services and products (e.g., coal or pure gas-generated electrical energy) and towards low-carbon options (e.g., one hundred pc renewable electrical energy). But if not applied in a approach that takes variations in into consideration, this policy technique, like inflation, may place an unequal and untenable financial burden on low- and middle-income Americans.

To garner assist from policymakers, carbon-penalty proponents have advocated for insurance policies that recycle revenues from carbon penalties to all or lower-income taxpayers within the type of payroll tax reductions or lump-sum funds. And but a few of these proposed insurance policies run the danger of decreasing the general effectivity of the U.S. economic system, which might decrease the nation’s GDP and impede its financial development.

Which begs the query: Is there a candy spot at which a nationwide carbon-penalty revenue-recycling policy can each keep away from inflicting financial hurt on lower-income Americans on the family degree and degrading financial effectivity on the nationwide degree?

In search of that candy spot, researchers on the MIT Joint Program on the Science and Policy of Global Change assess the of 4 totally different carbon-penalty revenue-recycling insurance policies: direct rebates from revenues to households through lump-sum transfers; oblique refunding of revenues to households through a proportional discount in payroll taxes; direct rebates from revenues to households, however solely for low- and middle-income teams, with remaining revenues recycled through a proportional discount in payroll taxes; and direct, greater rebates for poor households, with remaining revenues recycled through a proportional discount in payroll taxes.

To carry out the evaluation, the Joint Program researchers combine a U.S. (MIT U.S. Regional Energy Policy) with a dataset (Bureau of Labor Statistics’ Consumer Expenditure Survey) offering consumption patterns and different socioeconomic traits for 15,000 U.S. households. Using the mixed mannequin, they consider the distributional impacts and potential trade-offs between financial fairness and effectivity of all 4 carbon-penalty revenue-recycling insurance policies.

The researchers discover that family rebates have progressive impacts on shoppers’ monetary well-being, with the best advantages going to the lowest-income households, whereas insurance policies centered on bettering the effectivity of the economic system (e.g., payroll tax reductions) have barely regressive household-level monetary impacts. In a nutshell, the trade-off is between rebates that present extra fairness and fewer financial effectivity versus tax cuts that ship the other outcome. The latter two choices, which mix rebates to lower-income households with payroll tax reductions, end in an optimum mix of sufficiently progressive monetary outcomes on the family degree and economic system effectivity on the nationwide degree. Results of the examine are revealed within the journal Energy Economics.

“We have determined that only a portion of carbon-tax revenues is needed to compensate low-income households and thus reduce inequality, while the rest can be used to improve the economy by reducing payroll or other distortionary taxes,” says Xaquin García-Muros, lead writer of the examine, a postdoc on the MIT Joint Program who’s affiliated with the Basque Centre for Climate Change in Spain. “Therefore, we can eliminate potential trade-offs between efficiency and equity, and promote a just and efficient energy transition.”

“If climate policies increase the gap between rich and poor households or reduce the affordability of energy services, then these policies might be rejected by the public and, as a result, attempts to decarbonize the economy will be less efficient,” says Joint Program Deputy Director Sergey Paltsev, a co-author of the examine. “Our findings provide guidance to decision-makers to advance more well-designed policies that deliver economic benefits to the nation as a whole.”

The examine’s novel integration of a nationwide financial mannequin with family microdata creates a new and highly effective platform to additional examine key variations amongst households that may assist inform insurance policies geared toward a just transition to a low-carbon economic system.


Free inexperienced companies may considerably scale back emissions


More data:
Xaquín García-Muros et al, Toward a just energy transition: A distributional evaluation of low-carbon insurance policies within the USA, Energy Economics (2021). DOI: 10.1016/j.eneco.2021.105769

This story is republished courtesy of MIT News (net.mit.edu/newsoffice/), a standard website that covers information about MIT analysis, innovation and instructing.

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Ways to optimize U.S. climate policy design for a just energy transition (2022, January 13)
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