Politics, elections and piffle plinking

Floods, prices and mortality

   

With the flood waters receding in Queensland – giving us our first real look at the size of the damage involved – it might be worth going back and having a bit of a squiz at what happened on the economic front immediately following the last big South East Qld flood drama in January 1974. We’ll also take a peek at an interesting mortality stat while we’re at it.

Just about every large destructive event – be it flood, fire or cyclone – has consequences on the prices of goods and services at the local level. For example, if cauliflower farmers were wiped out, cauliflowers would become scarce and the prices would rise. Similarly, if a large number of households had their carpets destroyed by flooding – we’d expect a surge in the number of people trying to buy new replacement carpet, increasing demand for carpet and lifting the price of carpet in the short term as a result.

Often people will fall into the trap of calling this “price gouging” – but in reality, it usually has far,far more to do with ordinary people (you and me) bidding up the price of scarce goods and services, than it does with caricatures of evil retailers rubbing their hands with glee as they make abnormal profits by exploiting the desperation of disaster victims.

The fallout from the 1974 floods is a pretty good textbook example of the sorts of price change differentials we usually see after a disaster. If we look at the Consumer Price Index at the time and see how the prices of various goods and services changed between December 1973 and December 1974 in Brisbane compared to the national level, this is what we get:

CPIchange

Perhaps somewhat surprising is how the price of food in Brisbane increased at a rate substantially less than the rest of country over the period. What isn’t surprising however, is the way household contents and services jumped nearly a percent higher in price compared to the national average – jumping 5.5% over the year compared to the national average increase of 4.7% .

This comes back to what we mentioned earlier – as household goods that were ruined in the flood had to be replaced, the large bulge in demand (rather than price gouging) simply pushed the prices up. We should expect to see something similar happen in Brisbane over the next 12 months or so on a variety of goods and services.

One of the interesting things about the fallout of the 74 flood was that while the cost of housing increased more in Brisbane than it did nationally (jumping 4.1% over the period compared to the national average of 3.7%) – the increase in cost wasn’t as high as many had expected. There’s quite a bit of anxiety around Brisbane at the moment – particularly in the rental market – that the flood might push up housing costs significantly. Let’s hope that fallout is more akin to 1974 than the 7% and 8% increases that some folks in the property industry are currently throwing around.

The other interesting part on the economic side of the 74 flood was what happened in the construction industry. On the residential construction side, as we were heading into 1974, the country as a whole was experiencing a bit of a residential construction downturn. If we look the quarterly change in dwelling unit commencements for Qld and for Australia as a whole over the period, what we see is that the 74 flood gave Qld a larger than average downturn, but with a slightly higher than average bounce back on the recovery.

dwellingcommencement

But the real story was non-residential construction. When people mention non-residential construction, the first thing that comes to many a mind is CBD high rise office blocks and a sky full of cranes. Yet the reality isn’t actually that exciting. High rise office buildings only make up a relatively small proportion of the total value of non-residential construction – usually between around 5 and 15%, depending on the year. The bulk of non-residential construction is generally made up of things like shops and shopping centres, warehouses, hospitals and school buildings – and usually not in the CBDs of the nation, but out in the ‘burbs.

Heading in to 1974, non residential construction in Qld was growing along fairly robustly. It was nothing to write home about, but it wasn’t sluggish by any yardstick. Then around the time of the flood, something extraordinary happened.

nonresibuilding

It just took off.

The flood line in the chart sits on the final observation before the January 74 flood – which was December 1973. The big kick along happened pretty much when the flood occurred, which we can also see if we look at the annualised percentage change in non-residential construction value in Qld. Note the mountain of growth that immediately followed the flood.

yyresichange

It’s interesting to note that the rest of Australia had a bit of a growth surge in non-residential construction as well in the back half of the 1970’s – but it didn’t really start nationally until 1976. So Qld was ahead of the game.

The question, I suppose, is how much was just timing coincidence and how much was fallout from the flood itself e.g how much was as a result of businesses choosing to build new and better, rather than simply replace with the same if they were damaged in the flood. Often we’ll find that development begets development – where one business investing in new premises will often encourage competitors to follow. A sort of business version of keeping up with the Joneses.

If the 74 flood did have something to do with the non-residential construction growth surge – it might be worth keeping an eye on the ABS Building Activity releases over the next 12 months.

Finally, there’s an odd little thing in the mortality stats I found the other day. If we look at the number of registered deaths in Qld over the 1970’s, this is what we get:

qlddeaths

The 1974 flood killed 14 people in Qld, so the spike is obviously not from those particular fatalities – but it is a pretty unusual spike. If we look at the long term mortality trend as the number of deaths per 1000 people in Qld, what we find is that the mortality rate is in long term decline (as it is across Australia).

qlddeathrate

In only 3 of the previous 25 years before 1974 was the death rate higher, and it has not been higher in any of the 36 odd years since. So it was a pretty unusual year. However, Qld wasn’t the only state to exhibit this spike in 1974 – NSW also did, but to a slightly weaker extent.

If instead of using crude death rates, we instead look at the standardised death rates over the 1970’s (where we control each state population for their age profile), we can see how the Qld and NSW mortality rates compare to the rest of Australia excluding Qld and NSW. Standardised death rates allow us to effectively compare like with like by controlling for age issues.

sdrallpersons

sdrmales sdrfemales

As we can see, the large 1974 spike was a uniquely eastern seaboard affair, with the mortality rate in the rest of Australia actually declining in 1974. We also see how the spike was larger among men than women.

If we now look at the change in the death rate from year to year over the period (click to expand):

sdrchangeall

sdrchangemales sdrchangefemale

Not only does the 1974 experience in Qld and NSW really stand out, but the dramatic recovery the following year stands out as well. Whatever multitude of things might have been killing people in 1974, they didn’t hang around.

This got me thinking – what is often not appreciated when it comes to the 1974 flood is that it wasn’t only a Brisbane event. Most coastal catchments south of Brisbane right down to Forster in NSW, still use the 1974 flood as a local yardstick of “how bad a flood is”. Cyclone Wanda caused havoc not only in Brisbane, but from the NSW Mid North Coast up.

I wonder if the fallout from the flood may have had anything to do with that particular spike – be it from diseases, stress, or oldies simply giving up when they lost their family homes?

Of course, it also may just happen to be complete coincidence.

17 Comments

  1. 1
    Posted January 17, 2011 at 4:42 pm | Permalink

    ...] This post was mentioned on Twitter by Jinjirrie, The Big Wet and others. The Big Wet said: RT @QLDOnline: Crikey: Floods, prices and mortality http://bit.ly/dXcgjc #qldfloods #thebigwet #qld [...

  2. 2
    DrMick
    Posted January 18, 2011 at 7:21 am | Permalink

    Any chance it was a result of a change in the reporting of deaths? There was a spike in registered births a few years ago that had nothing to do with babies being born. It was because to get the Baby Bonus the birth had to be registered so compliance increased.

  3. 3
    Posted January 18, 2011 at 8:35 am | Permalink

    Poss great work.

    Your point about flood contributed deaths going largely unreported is pretty much the same in heatwaves.

    Heatwaves are the top killer of all natural disasters and are responsible for four out of the five most deadliest natural disasters and 11 of the 18 natural disasters that claimed 100 lives or more.

    Academics argue about whether heatwaves ‘harvest deaths’ ie just bring them forward a week or two, but nonethless they seem to be the only disaster that causes morgues to overflow with bodies.

    But in terms of reducing the impact of them; its easy- Get people to check in on their Granny.

  4. 4
    Eponymous
    Posted January 18, 2011 at 12:36 pm | Permalink

    Your cauliflower theory seems based on the ludicrous assumption that any people actually want to eat the stuff. Popularity of caluiflower is directly related to the low cost. There is clearly no other good reason to buy them.

    Otherwise, good article Poss. Quantity down for you (total posts wise) but the quality remains.

  5. 5
    Mark Duffett
    Posted January 18, 2011 at 12:39 pm | Permalink

    Rather than just ‘fallout from the flood’ per se, could it be more the concomitant (and much more widespread in terms of personal impact) weeks and months of unusually wet and cloudy weather that brought deaths forward in 1974?

  6. 6
    Posted January 18, 2011 at 1:02 pm | Permalink

    sspencer_63 Abbott says NBN is now a luxury Australia cannot now afford. Says money should be spent on Qld floods

  7. 7
    Ern Malleys cat
    Posted January 18, 2011 at 1:11 pm | Permalink

    Does non-residential construction include dams?
    The Hinze Dam first stage and the initial work on Wivenhoe were also around this time, so the flood may have had another effect on the surge in construction.
    Also 1974 was the beginning of the reign of Russ Hinze as Minister for Local Government (and later Everything) and the consequent corruption of the planning and approvals process which no doubt is having an effect on the amount of post-74 development and infrastructure that is affected.
    The deaths correlation is baffling, maybe DrMick is right.

  8. 8
    Posted January 18, 2011 at 5:38 pm | Permalink

    ...] more on Crikey [...

  9. 9
    Posted January 18, 2011 at 6:00 pm | Permalink

    Glee Watch News as spam – oh the humanity!

  10. 10
    Posted January 19, 2011 at 9:28 am | Permalink

    The mid 1970′s were also a time of change on the roads in Australia, with the introduction of seat belt requirements at different times by different states, different policing regimes, increasing availability of high powered vehicles, breathaliser legislation etc etc. Could this be implicated in any way in the difference in death rates? My memory is that 74 was just about the “turning point” when things started getting better in this area in some states. THis may be reflected in the sustained “bump” in the general Qld deaths graph between the late 1950′s and the mid 70′s.

    Or maybe there was an unnoticed equivalent of Dr Patel loose in the Queensland hospitals that year? ;-)

    But what about other Qld flood years? Were similar peaks sen with them? If not I’d be thinking it may be due to other factors, or perhaps simply a statistical blip.

  11. 11
    Posted January 19, 2011 at 9:36 am | Permalink

    Just by the way, I see that there was a substantial fall in the Australian death rate between 2007 and 2008 – after a slow and prolonged build up during the Howard years. see http://www.indexmundi.com/g/g.aspx?c=as&v=26

    I always reckoned conservative governments were bad for your health! ;-)

  12. 12
    JamesH
    Posted January 19, 2011 at 10:47 am | Permalink

    Poss, you’re indulging in magical thinking here:

    “household goods that were ruined in the flood had to be replaced, the large bulge in demand (rather than price gouging) simply pushed the prices up… Often people will fall into the trap of calling this “price gouging” – but in reality, it usually has far,far more to do with ordinary people (you and me) bidding up the price of scarce goods and services, than it does with caricatures of evil retailers rubbing their hands with glee as they make abnormal profits by exploiting the desperation of disaster victims.”

    “Demand” is not some magic thing that pushes prices up independently of retailers actions. If the disaster did not affect the supply costs of carpets, say (AFAIK Brisbane is not a major carpet producer, feel free to prove me wrong), then retailers are going to make abnormal profits by selling new carpets at a higher price than they otherwise would. They don’t have to choose to raise their prices. If there was a fixed number of carpets in the world then there might be reason to do so, but in this world of just-in-time manufacturing and delivery, more carpets (and most other commodities) can be made as rapidly as they can be sold. If supply costs aren’t affected, then price rises are profiteering (or rent-seeking if you prefer).

    Saying that “demand is higher” is an excuse for making it harder for people at the poorer end of the market to rebuild their ruined households, not a reason.

  13. 13
    imacca
    Posted January 19, 2011 at 1:40 pm | Permalink

    Thanks for this Poss. Considering some of the opportunistic utter crap that has been in the OO and around the intertubes of late, its so good to see some real, honest analysis that i think will be particularly good to look back on in 12-18 mths time as a baseline.

  14. 14
    Socrates
    Posted January 19, 2011 at 11:13 pm | Permalink

    Thanks Pos, a thoughtful and thorough analysis as always. I have two comments:
    - it isn’t just dams, floods damage lots of stuff, like roads, pipes, power lines and pumping stations, and this leads to repairs that can take years. If someone gave Qld Main Roads a blank cheque tomorrow, it would probably still take them 2-3 years to get all the States raod assets back in shape. I think this may have happened in 1974-76, and the flood recovery/repair phase then starts to merge with the development boom Qld experiencd from the mid-70s onwards.
    - regarding the housing market, I share your hopes that the outcome is more benign, but I fear there are several differences from now to 1974 in house markets. First the current market is much tighter, and population growth rates now are actually higher. Second, the end of capped interest rates and negative gearign makes it open slather on house prices. I hope I’m wrong.

  15. 15
    Tri$tan
    Posted January 20, 2011 at 11:57 am | Permalink

    James seems to have somewhat of a point here… but I suspect it was different in 74 (ie it was harder to ship more carpets etc).

    There will also be a short term impact on demand (ie, you can’t have more carpets tomorrow. There is still a lag)

    Suppliers are going to be wary of over stocking. Just because you can get goods fast doesn’t mean they are on demand. Maybe this is changing, but it’s not like you order a fridge, then Harvey Norman ring up LG and say ‘can we have a fridge’. They buy the fridge and then sell it. They buy a container full of fridges then sell them.

    They ain’t gonna over order and be left with 1000s of fridges they can’t sell. What they are gonna do is buy ‘more’ but not too many more and keep the prices higher: maximising profit and minimising the risk of getting stuck with a bunch of fridges nobody wants.

  16. 16
    biasdetector
    Posted January 26, 2011 at 7:59 pm | Permalink

    Possum,
    Don’t you think there is a natural change in peoples voting habit as they get older. Being at school and taking payments from the Government and “fat cats” seems ideal, I little different when you have to support a wife a few kids and then other peoples children through huge tax takes, and now Gillard new tax as well?

  17. 17
    izza301
    Posted June 15, 2011 at 3:40 pm | Permalink

    Hi. I really had a good time reading this stuff. I enjoyed every minute that I spent here.
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