So, you think Auckland house prices are pretty important.
Or, looking more broadly and globally, the price of oil. That's quite significant, isn't it?
Well, actually, these are not the most important things.
Houses are important, yep - but houses in China.
According to Hong Kong-based Bernstein analyst and ex-pat Kiwi Michael Parker, China's real estate is the most important asset class in the world.
In a paper co-written with fellow analyst Katrina Fu and titled: BTW Asia: A Bit of A Fixer Upper... Why Chinese real estate is the world's most important asset class Parker and Fu say the "most compelling bear thesis on the Chinese economy – and the global economy" – starts with the Chinese property market.
The say a mis-managed monetary tightening in China might result in a sudden decline in both Chinese property prices and construction activity. Commodity prices and demand for capital goods globally would collapse. Chinese consumer confidence would fall. Confidence in the economy overall would be undermined, triggering a re-emergence of foreign currency reserve outflows and the same fears about capital flight that we saw in 2015.
"We estimate that today over half of the private wealth in China is tied up in real estate," the two analysts say.
They say a loss in the value of Chinese real estate creates a simple question in the mind of every Chinese householder about the perils of being the last individual globally holding RMB-denominated assets: "what am I waiting for?"
'Most compelling bull thesis'
Conversely, the most compelling bull thesis on the Chinese and global economy remains the Chinese property market.
"The extraordinary level of adoption of premium goods by Chinese consumers is – in our view – in part a function of the wealth effects and intergenerational wealth transfer already going on within China's extended families.
"We estimate that in China the average consumer of premium autos, premium spirits, premium mass gaming in Macau, luxury goods and overseas travel is a member of a household with annual income of less than US$50,000.
"The cost of living in a large Tier 1 or Tier 2 Chinese city – and consuming luxury goods - is prohibitively expensive for such a household unless the family in question has already purchased an apartment (with assistance from parents and grandparents) and therefore does not incur accommodation cost.
"The most important assumption in relation to premium consumption in China is therefore that property prices continue to rise," Parker and Fu say.
They say the assumption that two sets of parents and four sets of grandparents will support a young family living in a Tier 1 or Tier 2 city requires that those parents and grandparents are seeing the paper value of their portfolio rise each year and are happy to fund the younger generation into an apartment of their own.
Property market drives demand
"All of this gets us back to the original assertion: the health of the Chinese property market drives global demand for iron ore, coal, aluminum, oil, copper, steel, natural gas as well as trucks, cranes and excavators and other capital goods.
"Rising property prices staunch the outflow of currency which could tank the RMB along with every currency and every asset class in every emerging market globally."
The analysts say Chinese property prices also drive wealth effects and with it demand for premium autos, gaming activity, luxury goods, premium spirits, air travel, leisure, hospitality, aircraft... and demand for general retail of every description.
China is either the largest consumer of each of these categories globally or holds the largest growth share in each of these categories globally.
"A downturn is not simply bad news for China. A downturn in property prices in China means a material cut to demand for all these end markets globally, and an even more substantial hit to sentiment.
"Our inescapable conclusion is that China's property market is the world's most important asset class."
Parker and Fu say Chinese property prices have risen in each of the last 29 months in the 70-city survey Bernstein carries monthly.
The strength of the Chinese property market has been so robust that cooling measures have been in place for 13 months in Tier 1 cities and are now in place for 63 Tier 3 or below cities as well.
The runaway prices in China's Tier 1 cities often captures the news cycle, although apartment prices in China's largest cities are rising at single digit levels at present.
The analsts say there are three things are important to remember about the Chinese property market:
►First, since 2000, average selling prices in the Chinese property market have increased at roughly 8% on a nominal basis. Wages have increased at roughly 11%, meaning that - for all of the strength in the Chinese property market, the affordability overall has gone from 6.3x in 2000 to 7.3x today. The ratio is rising not because property prices are outstripping income (the reverse is true), but because new apartments are increasing in size.
►Second, over the last fifteen years, there have been eight separate cycles where the Chinese government has intervened to either cool the Chinese property market (restricting lending terms for second properties, for example) or encouraged the Chinese property market by loosening restrictions. In each of those eight previous occasions, the Chinese property market has responded by either falling or rising in value. China is currently in the eight iteration of that long-term policy.
'The system works well'
"In short, rapidly rising prices followed by cooling measures are not a signal of problems with the system. That is the system. And it works pretty well," Parker and Fu say.
The use of a policy to restrict access to funding means that loan-to-value in the property market remains ~44%. The ratio of banks deposits by Chinese households with Chinese banks to mortgages issued by Chinese banks is 3.2x. In the U.S. in 2007, that ratio was 0.7x.
►Third, the extremes within the Chinese property market are a lot less extreme than they were even two years ago. The tightening of lending rules and requirements in Tier 1 cities mean that price appreciation in Shenzhen, Shanghai and Beijing has moderated this year.
At the same time, efforts to clean up excess inventory in China's "ghost cities" has largely been successful. Municipal governments have stepped in to purchase excess inventories and converted those properties to low-income housing.
The Ministry of Housing and Urban Development is currently in the middle of a long-term program buying up residential inventory to serve as replacement housing following shanty area demolition. Shanty demolition is occurring at the rate of ~6 million units annually in China.
Parker and Fu says at the end of 2017, the Bernstein property team estimates the shanty units still to be demolished will be about 24 million. Roughly 50% of those displaced homeowners were provided with an apartment from existing, excess inventory in 2016, down from ~70% in 2015.
"We are expecting the number to decline to ~40% in 2017, or ~ 3.6 million units. There is no data in terms of the location of those purchases, but majority would be in low tier cities.
"The target for the next three years is demolition of 5 million units annually.
"The policy meets key social objections within China (~150 million people in Chinese cities will be affected over the course of the program, which began in 2012) and serves to clean up excesses in the Chinese property market.
Rising property key to success
"The debt goes on municipal balance sheets and is served through… the sale of land to private property developers. The takeaway being: the rising value of Chinese property is a key characteristic of the success of the program.
"We estimate China needs to continue building ~800 million square meters of urban residential real estate each year for the next quarter century to accommodate the one-billion-plus people living in Chinese cities by the 2040s in modest apartments."
In 2016, residential construction was ~800 million square meters, so this dynamic has years – decades! - to run at the current level.
"In short, every aspect of the Chinese economy – consumption, imports, capital outflows, industrial activity, commodity prices, and even social justice metrics like inequality – come back to the Chinese property market.
"The interdependencies may not be as strong as English noblemen buying and selling each other gilts in 17th century London. But regardless, Chinese property has become the world's most important asset class."