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The Progressive Economics Forum

The case against a revenue-neutral carbon tax

I’m a fan of carbon taxes, but increasingly I see the term “revenue-neutral” attached to it. Where I live, in BC, we have perhaps the most prominent example of a revenue-neutral carbon tax, and carbon tax advocates have come to promoting the BC model to other jurisdictions, such as Ontario, who are contemplating their own carbon tax. This includes the new EcoFiscal Commission, which endorses a naive view of markets – the magic of free markets is alive and well, and if only we could put a price on carbon to change marketplace incentives, all will be well.

Revenue neutrality is a bug of BC’s carbon tax framework, not a feature. Here’s why.

First of all, while economists love the idea, most ordinary people simply don’t get it. Revenue neutral is the idea that all carbon tax revenues must flow back out the door as other tax cuts (typically income tax) but also could be in the form of tax credits or a fixed dividend. In some cases, people do not trust that this is going to happen as promised. In BC, they would be right, as 2/3 of carbon tax revenues have been used to support corporate income tax cuts.

More importantly, while people may not like paying taxes, when they do they want to see that money build stuff. That is how people understand taxes. And dang it, we need to build a lot of stuff to get us off of fossil fuels: walkable and bike-able communities, public transit, energy-efficient buildings, zero waste systems, renewable energy, as well as forest conservation and stewardship measures.

None of these things can effectively be bought with a tax cut. Indeed, the ability of many actors to respond to a carbon price is constrained by their circumstances: if you live in the suburbs you don’t really have an option but to keep driving; if you are a renter you don’t have agency over energy efficiency investments; and even if you are a concerned home owner, the area of energy efficiency is plagued by market failures in information, such that profitable investments often go unrealized in favour of the status quo.

Big picture, climate action requires that we act together to make systemic changes and infrastructure investments to reduce our emissions. Carbon pricing is part of the answer, but regulations and public investment are also needed. Too many carbon tax advocates tend to pit carbon taxes against those other measures.

The case for revenue neutral is often made on the grounds that people won’t support it otherwise. In response, I note recent comments from Washington State Governor Jay Inslee, as the state looks at a more aggressive climate action plan:

My conclusion is that a revenue-neutral proposal does not give you additional support either in the legislature or in the public. It actually has diminished support. That’s from a guy who’s been in this business for 22 years, and both won and lost elections. It’s important to listen to people, and I’ve listened to people and that’s the conclusion that I’ve reached.

Revenue-neutral advocates also make unsupported claims about the benefits of tax cuts, especially personal income tax cuts. In particular, the claim that PIT cuts will be beneficial due to disincentives to work from taxes is just plain wrong. Even in economic theory the impact is ambiguous (there are both income and substitution effects in response to a tax change). People cannot easily alter their hours of work in response to PIT rates, and studies show that the impact of PIT on work effort is basically zero. In fact the top 1% facing the highest top marginal tax rates tend to work longer hours.

If you want to maximize the economic benefit of those carbon tax revenues, it is widely known that public spending/investment is a better approach. Multipliers for public investment are much higher than for tax cuts. That is, they have a bigger impact on employment and provide a bigger boost to GDP. So to the extent that carbon taxes are part of the answer, they are more effective if revenues are used to support climate action initiatives, economically and in terms of affecting the change we want.

Some perspective on effectiveness also comes from the collapse of market prices for oil, a price impact which far outweighs any carbon pricing on offer. Historically, price swings due to market forces swamp carbon pricing efforts. Vancouver is a good example, even on a weekly basis as the price of gas fluctuates by more than the amount of the carbon tax. If we were to boost gas prices back to levels of June 2014, before the price crash, we’d be looking at a carbon tax of more than $200 per tonne.

Finally, revenue neutrality is bad public finance. PIT funds important public services that we will need well after we solve our carbon problem. We need stable revenue bases (income and sales being the main ones) to support a vibrant public sector. This is often neglected by economists whose models start with a hypothetically perfect market without government, then crudely “prove” that government interventions make things worse by deviating from that fantasy equilibrium. This includes results from computable general equilibrium (CGE) models, which are presented as if they are offering empirical data when they are really just taking bad theory and putting numbers to it.

So let’s say yes to carbon taxes, but no to BC’s revenue neutral approach. Supporters of the BC model also tend to gloss over the BC government’s obsession with natural gas exports, which if successful would pump hundreds of millions of tonnes of CO2 into the air each year.

If we are to stay below 2 degrees of global warming, major constraints on carbon will be needed, and a large portion of our fossil fuel reserves left in the ground. So the appropriate question is what is a carbon pricing trajectory consistent with that, or consistent with Canada’s plausible share of global carbon budget (as recommended by the IPCC).

Income transfers do need to be part of the system, because carbon taxes are regressive – they have a bigger hit on the incomes of low-income households than high-income households. So I support an enhanced credit that would go to low- to middle-income households. A flat dividend approach is favoured by some, but I like Canada’s experience with transfers like Old Age Security and Child Tax Benefits that reach a high percentage of households, but target the most income to the most in need.

The naive markets view has come up with some catchy slogans (e.g. “tax what you burn, not what you earn”), I’ll give them that. But their approach is too rooted in neoclassical economics and is biased towards individual- or firm-level decision making in response to price changes. We can have fair and effective carbon pricing, but that means giving up on revenue neutrality (for more on the BC carbon tax, see this report).

Enjoy and share:

Comments

Comment from Darwin O’Connor
Time: January 15, 2015, 4:52 pm

As you point out swings in the price of oil have swamped carbon taxes. The rise in oil price only had a modest effect on emissions. That means a carbon tax to be effective it was have to be much higher then the price of oil has swung. So high much of it would have to be returned back to the people as a fixed dividend or there would be significant hardship, plus the government would be hard pressed to spend the money fast enough on infrastructure projects. The fixed dividend could be subject to income taxes to generate a revenue stream and make it more progressive.

Comment from Ron Waller
Time: January 16, 2015, 9:53 am

The EcoFiscal commission is a sham, pure and simple. They use pollution taxation as an excuse to cut more taxes for the rich: income, corporate and investment taxes.

People should realize that all tax cut schemes are a scam.

Take for instance, income taxes. The top 20% makes 52% of all the income and pays 60% of income taxes. So if a government cuts income taxes, one fifth of taxpayers get 60% of the money!

Corporate and investment taxes are an even worse for the vast majority of people. (Corporate taxes are ultimately paid for by shareholders who could be foreigners.)

After 35 years of declining real wages and benefits, most Canadians don’t need tax relief they need BENEFIT relief.

We need better pensions, pharmacare, daycare, eyecare and dental. We deserve these benefits as our fair share of the economic pie.

More tax cuts for the rich will only further increase inequality and erode democracy. These policies over the past 35 years have killed GDP growth and wreaked economic havoc.

The only way an economy functions is if all segments of society benefit from economic and productivity growth. This requires spending not tax cuts for the wealthy (which are always followed by spending cuts for average Canadians.)

As Marc Lee also points out, we need big government spending on infrastructure, which has a multiplier effect, boosting the economy and creating jobs — not to mention building a modern green society.

We need centrist economic leaders like Republican president Dwight Eisenhower. He raised taxes on the wealth to 91% to fund an interstate highway system. Policies like these are proven to work.

Comment from Ron Waller
Time: January 16, 2015, 10:02 am

Marc Lee: we could really use an update of your “Eroding Tax Fairness: Tax Incidence in Canada, 1990 to 2005” report you did in 2007.

Harper has cut taxes by $50-billion a year since then, and I somehow doubt the little people are the prime benefactors.

In fact, if one looks at Canada’s tax revenues as a percentage of GDP (OECD,) it has dropped 5 percentage points since the 1990s. That amounts to $90-billion a year in tax cuts which have mostly gone to the wealthy.

Taxes in Canada

Comment from @pmagn
Time: January 16, 2015, 1:12 pm

disagree. it just needs to be implemented right…

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