Demographia：2017年国际房价负担能力调查报告（84页英文版）（84页）.pdf

1、13thAnnual Demographia InternationalDemographia International Housing Affordability Survey: 2017 Rating Middle-Income Housing Affordability Australia Canada China (Hong Kong)Ireland Japan New Zealand Singapore U i d KidU i d SUnited Kingdom United States With comparisons to External Indexes for Chin

2、a and Malaysia Introduction by Oliver Hartwich The New Zealand InitiativeThe New Zealand Initiative Data for 3rdQuarter 2016 13th Annual Demographia International Housing Affordability Survey INTRODUCTION Housing Affordability: A Social Imperative Oliver Hartwich Executive Director, The New Zealand

3、Initiative It is a great honour to provide the foreword to this years Demographia International Housing Affordability Survey. Not just because I am humbly following in the footsteps of previous contributors to the series, many of whom I know personally and admire deeply. But mainly because I have be

4、en a fan of Demographias indices since they started in 2005. I first became involved in housing debates in that year when I was a researcher at London think tank Policy Exchange. I remember very well how difficult it was to put a figure to housing affordability which is also internationally comparab

5、le. Demographias median multiple approach closed this gap. It firmly established a benchmark for housing affordability by linking median house prices to median household incomes. It is as simple as it is ingenious. And it is probably the index I have cited most often in my career. The median multipl

6、e is not a perfect measure because it does not account for house sizes or build quality. But it is the only index that allows a quick comparison of different housing markets, and it is the best approximation of housing affordability measures we have to date. So first of all, my congratulations and t