No free riders

Why did @ShoebridgeMLC @GreensJamieP share meme on #globalwarming as a international public good but vaccine development is as national and private good?

Biggest barrier to a #COVID19 vaccine take-up

 

If @Greens’ #greennewdeal was implemented 30-years ago, would #globalwarming be less? #climateemergency

Lesley Telser on the lighthouse in economics

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Nordhaus explains climate clubs for @jamespeshaw @mfe_news

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Nordhaus explain climate clubs @mfe_news @jamespeshaw

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@GarethShute @TheSpinoffTV has no answer to the futility of unilateral action other than fairy dust and veganism is what will inspire the world

So @mfe_news advised @jamespeshaw that unilateral action is futile. Only global action will help.

@GreenpeaceNZ @jamespeshaw The Futility and Farce of Global Climate Negotiations @RichardTol

It is time for the environmental movement to face up to the fact that there never will be an international treaty to restrain carbon emissions. The practical way  to respond to global warming is healthier is wealthier, richer is safer. Faster economic growth creates more resources for resilience and adaptation to a changing environment.

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Source: Energy Policy & the Environment Report | Leading Nowhere: The Futility and Farce of Global Climate Negotiations.

The herd immunity role of #vaccinations explained @KevinHague @MaramaDavidson @NZGreens – updated

Some public goods can be not provided much at all if even a few do not contribute – free ride. These are called weakest shot public goods. The link in the chain is only as strong as the weakest link for some public goods. The fighting against communicable diseases is an example of that.

The classic example given by that brilliant applied price theorist Jack Hirschleifer is a dyke or a levee wall around a town. It is only as good as the laziest person contributing to its maintenance on their part of the levee wall. Vicary (1990, p. 376) lists other examples:

Similar examples would be the protection of a military front, taking a convoy across the ocean going at the speed of the slowest ship, or maintaining an attractive village/landscape (one eyesore spoils the view).

Many instances of teamwork involve weak-link elements, for example moving a pile of bricks by hand along a chain or providing a theatrical or orchestral performance (one bad individual effort spoils the whole effect.)

Another example of weakest shot public goods is community cooperation after disasters. The quality of the public good provided is equal to the contribution of the weakest person who may start a criminal rampage despite the good efforts of everyone else.

People tend to be more cooperative after natural disasters. They realise their contribution is more important than normal to the maintaining of the social fabric which is currently hanging by a thread.

Vaccinations are example of a weakest shot public good. The quality of herd immunity depends fundamentally on just about everybody contributing by getting vaccinated. Not all public goods depend on the some of those contributions made. In some cases  just a few people choosing to free ride can greatly undermine the public interest.

The reverse of a weakest shot public good is best shot public goods. Example of this is the development of vaccines themselves. The public good is only as good as the best effort at developing the new vaccine with all the others efforts pointless because the best of the vaccines is chosen.

The most curious people in New Zealand to oppose measures to address the under provision of weakest shot public goods are the New Zealand Greens.

The Greens are usually the 1st to stress the importance of communities working together for the common good.

Herd immunity protects those who cannot be safely vaccinated including new babies, those for whom the vaccine fails, which occasionally happens, and those with compromised immunity such as adults receiving chemotherapy.

We are all in this together. It is time for the New Zealand Greens to stop pandering to those are only think of themselves and what a free ride on others including the very sick and new babies.

Source: NOVA | What is Herd Immunity?

Herd immunity requires vaccination rates of about 94%. The near universal vaccination rates required for herd immunity are to smaller margin to pander to an awkward squad who do not want to vaccinate despite the harm they do to others.

Harm to others is grounds and has always been grounds for public policy and public health interventions. Instead, the Greens are anti-science, anti-public health.

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Measles is the most contagious disease known to man. Seven children died in New Zealand in the last measles outbreak in 1991. The dead are already too many from the anti-vaccination quacks and cranks.

Australia announces its futile carbon emissions target

via Australia’s Climate Change Policy Announced | Catallaxy Files.

What difference did the Kyoto protocol make and that’s before you consider 3rd World development

Why developing countries aren’t interested in global climate treaties

How to argue for doing nothing about global warming when arguing for a climate club enforced by green tariffs!

The best case I’ve seen recently for doing nothing about global warming was put by those arguing with the greatest sincerity and considerable technical skill that the next international climate treaty should be built around a climate club of those that comply with its obligations with green tariffs on those who do not join.

I have long argued that green tariffs are the only reason to do anything about climate change. Much better to collect the revenue ourselves than let it go into the pockets of a foreign taxman.

William Nordhaus has proposed climate clubs as a way of overcoming free riding in international climate negotiations. Specifically, the international climate treaty should authorise members to impose green tariffs on non-members to encourage them to impose their own carbon taxes and carbon emission targets. This has been done before with the Montréal protocol on CFCs. To encourage the phase-out of CFCs countries that did not commit to do so simply could not trade in those goods with members of the club.

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via Climate Deal Badly Needs a Big Stick – NYTimes.com.

4%! A 4% global green tariff is all that is necessary under a climate change treaty that proposes that a carbon price of $50 to apply globally! A 4% green tariff is hardly worth worrying about considering tariffs used to be much much higher than that.

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Given all the stories of why woe and doom touted out by the climate alarmists, climate salvation and the keys to environmental heaven should cost much more than 4% tax?! Your sins are forgiven for a 4% green tariff! Big problems such as a climate crisis are not solved with a 4% green tariff.

I think this green tariff of 4% is an own goal. It reinforces the clear message from the economics of climate change that global warming is actually a small economic problem not a large one.

For developed countries, global warming will be at most a minor irritant. For developing countries, their best solution and the solution they have most control over is to develop faster and become a developed country.

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