Discussion Tuesday

And to switch tack …

The role of government is not to redistribute incomes, a process that leads to many with already reasonable claims on resources to simply demand (and be given) more from others.  The government’s redistributionary focus should be on insurance in certain circumstances, helping those trapped in poverty, and those who start life at a significant disadvantage.

Quick note: Earnings inequality and aging

Note:  I know I’m not replying to comments right now, I’m very sorry.  It isn’t you, it is me – this time of year is always pretty full on for me!  Keep an eye out – in the next couple of weeks I will find time to turn around and comment back.  Post will be a touch lighter as well – but I will try to have at least three things up a week!

Via Twitter came this cool graph from Wiki New Zealand.

I’m going to quickly note something from that graph.   Read more

Discussion Tuesday

Similar to last week:

People in society care about absolute differences in income not relative differences.  As a result, in a growing society income inequality measures understate this concern.

Football referees aren’t just wrong, they’re biased

Football penalties are often controversial and the first couple of days of the World Cup have already provided one dubious decision. Luckily for the referee’s personal safety it favoured the hosts, Brazil. But, according to Randal Olson’s fascinating analysis of penalty decisions, there may be more than luck involved:

70.6% of all penalty kicks were awarded to the Home team.

penalty-kicks-team

Similarly, if the Away team received the first penalty kick, then the Home team received the second penalty kick 92.5% of the time — an incredible display of referee bias.

Check out the whole post for all the details and a bunch more stats!

Rates and property values: it’s the relativity that matters

I have a very minor quibble with today’s article in the herald titled “Higher rates the flipside of soaring house prices“.

The crux of the article is this redacted quote

If you live in Auckland and neighbouring houses have sold for unheard-of prices in the past two months, you can expect your home’s official value to shoot up.

The flipside? The new values will be taken into account when setting new rates next year.

While I’m not privy to the precise detail of how rates are calculated (nor do I want to be!), my understanding is that the council sets a fixed amount they want to raise via rates, and then allocates that across houses via relative values.

Because the pot is fixed as such, if all house values increase by the same amount, we would expect the share of rates that each house pays to stay the same (this is where I expect someone with an intricate knowledge of rates calculations to jump in and correct me…).

Therefore it is only if your property value  increases by more than other properties, we would expect your share of rates to increase. So if you own a house in an area that has rapidly gentrified since rates were last set (Guessing places like Onehunga, New Lynn etc…), then the share of rates you pay will probably increase, since your property value has likely increased by more than the city wide average.

The first sentence of the article I have quoted is probably getting at this, but I just thought it was worth making it explicit that the general increase in house prices in Auckland doesn’t necessarily mean you are going to pay more rates.

Hiding value judgments behind economic rhetoric: The case of obesity

Note:  Renamed this from “Discussion Thursday” as I ended up inadvertently writing a post rather than a comment …

Sorry, a bit busy to do real posts.  Also wanted to get a discussion going on this excellent quote from Eric Crampton about using sugar taxes to pay for the “health care externality” from obesity/sugar consumption:

What happens then if we find that it’s those healthy exercise people who cost the system more, on the whole, because they live longer (costing the superfund) and consume health services over a longer period?

Be careful wanting to tax all the fiscal externalities. You might not like where it leads.

Let me throw up a quick first comment here 😉

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