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Dynamic Analysis of House Price Diffusion across Asian Financial Centres
J. Yeh and A. Nanda
Presented by
Jia-Huey Yeh
Hong Kong Singapore Tokyo
Seoul Taipei Bangkok
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AgendaBackground and MotivationTheoretical Consideration
Determinants of Housing PricesExplanations of Diffusion Effects
MethodologyThe GVAR ModelEstimation of the GVAR Model
ResultsConclusion
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Background and Motivation (cont.)The Fluctuations of Global Housing Markets
Source: BIS data
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Background and Motivation (cont.)The Gap of Housing Prices between Financial and Non-financial Centre
Source: National Statistics, Taiwan
1991s21992s21993s21994s21995s21996s21997s21998s21999s22000s22001s22002s22003s22004s22005s22006s22007s22008s22009s22010s2
0
50000
100000
150000
200000
250000
300000
350000Real residential land price
Taipei Taichung Kaohiung
5
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2.5
2.55
2.6
2.65
2.7
2.75
0
50
100
150
200
250
Taipei City Housing Prices Index & Population
Population Housing price indexYear
Popu
latio
n/M
illio
n
Price Index
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Background and Motivation (cont.)The importance of Asian Financial Centres
Top 25 the Global Financial Centres Ranks
Source: The Global Financial Centres Index, 20116
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Map of the Regions
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Map of the Regions
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0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
Japan South Korea
Singapore
Taiwan Thailand
Hong Kong
Share of Trade Flows in the GDP
Source: IMF and Datastream. The ratio of trade flows to GDP based on average weights from 2006 to 2009
GDP (ppp) to the World GDP (ppp) Ratios
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Background and Motivation (cont.)HypothesisGlobal factors determine house prices in
Asian financial centresThere is an existence of lead-lag relations
between housing markets in Asian financial centres
The diffusion effect causes house prices in Asian financial centres to decouple from those in non- Asian financial centres
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Theoretical Consideration(cont.)Determinants of House Prices
12
Global macro conditi
ons
Country macro econo
my
House
prices
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Theoretical Consideration (cont.)Explanations of Diffusion Effects
Balassa-Samuelson Effect− A higher degree of the
openness of the economy has a significant positive impact on house prices
(non-tradables)– Low mobility of labour
across countries and spatial fixity causing real estate to have similar characteristics as non-tradable sector
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Growth in productivity of tradable sector
Increase in wage level in tradable sector
Increase in wage level in non-tradable sector
Rise in relative prices of non-tradables
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Theoretical Consideration (cont.)
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Shock to house prices in Region A
Consumption changes in Region A
Trade balance
changes in Region A
Exports changes in Region B
House prices
changes in Region B
Housing Wealth Effect Chains
Balassa-Samuelson effect?
Housing wealth effect may contribute to causal relationships between some housing markets with economic interdependence
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Theoretical Consideration (cont.)Process of House Price Diffusion
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Balassa-Samuelson Effect •A higher degree of the openness of the economy causing relatively higher house prices (non-tradables)
Gravity Model •Higher GDP and shorter distance between trading partners leading to greater trade flows
Housing Wealth Effect Chains •House price shocks causing changes in domestically produced goods/services and in trade balance by housing wealth effect •One country’s housing wealth effect affecting the other country’s economic activity and influencing the country’s house prices
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Literature ReviewCo-movements of Real Estate Markets
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Study Estimated method and period Results
Chen et al. (2004)
Using structural time-series method to test Hong Kong, Singapore, Tokyo and Taipei housing markets series
Similar trends and cyclical house prices in Hong Kong, Singapore, Tokyo and Taipei
Gerlach et al. (2006)
Property share indices in Hong Kong, Singapore, Malaysia and Japan from 1993 to 2001 based on VAR with Inoue’s (1999) structural break model.
The 1997 Asian financial crisis did influence property markets in the East Asia Region, causing the independence between these real estate markets
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Literature Review (cont.)
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Determinants of Co-movements Study Estimated method and period Results
Case et al. (1999) 1987-1997 in 22 cities around the world.
Global GDP is more important in industrial property
Otrok and Terrones (2005)
1980Q1-2004Q1 in 13 industrial countries by using dynamic VAR
Global factors including low real interest rate and global business cycle are important determinants of house price cycles.
Beltratti and Morana (2010)
1980Q1-2007Q2 in G-7 areas by using F-VAR model
Global factors drive international house prices.
Goodhart and Hofmann (2008); Adams and Fϋss (2010)
1970Q1-2006Q4 in 17 industrialised countries.1975Q1-2007Q2 in 15 OECD countries with panel VAR model
Multidirectional link between house prices, monetary variables and macro activity
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Literature Review (cont.)
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House Price DiffusionStudy Estimated method and
periodResults
Pollakowski and Ray (1997)
1975-1994 in the US by usingVAR model
Existence of lead-lag relations between neighbouring areas
Meen (1999) 1973-1994 in the UK Based on life-cycle model
Ripple effect is caused by adjustments within regions rather than between regions
Stevenson (2004) ; Oikarinen (2006); Hui (2010)
1978 Q1- 2002 Q2 in Ireland and Northern Ireland; 1987-2004 in Finland ; 1989-2001 in Malaysia by using VAR and VECM
Housing price diffusion first from the main economic centre to regional centres and then to the peripheral areas
Vansteenkiste and Hiebert (2011)
1989-2007 in 10 euro countries by using the GVAR model
There exists positive correlations in the long run in Euro area house prices; country-specific factors still play important roles in house prices
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Methodology The Global Vector Autoregressive Model (the GVAR)
Introduced by Dees, di Mauro, Pesaran, and Smith (2007) and Pesaran, Schuermann, and Weiner (2004)
Combining country-specific variables and their country-specific foreign variables with weighted averages for all other countries
The GVAR allowing 3 interdependent channels− Contemporaneous interactions of domestic and foreign
variables and their lagged values− Interrelations between country specific variables and common
exogenous variables− Contemporaneous dynamic analysis by using cross-country
covariance
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Methodology(cont.) Each country can be seen as VAR augmented by weakly
exogenous (foreign) variables x*, namely VARX with the first order xit = aio + ai1t + Φixi,t−1 + Λi0x*
it + Λi1x*it−1 + uit t = 1, 2,…, T and i = 1,…,N (1)
xit* = wij xjt , with wii = 0 , wij =1, j = 1,…, N, based on cross-country trade flows
Whereai0 and ai1: ki × 1 vector of fixed intercepts, and the deterministic time trendxit : ki× 1 vector of country-specific (domestic) variablesxi
* : ki*× 1 vector of foreign variables specific to the country i
Φi : ki × ki matrix of coefficients related to lagged domestic variablesΛi0 and Λi1 : ki ×ki
* matrices of coefficients associated to foreign variables Uit : ki ×1 vector of country-specific shocks, serially uncorrelated with mean zero and a
time invariant covariance matrix Σii
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N
j 1
N
j 1
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The vector error-correction model (VECMX) for a co-integration VARX can be written as ∆xit = ci0 − αi βi′[zit-1 − γi(t − 1)] +Λi0∆x*
it + Γi∆zit-1+ uit (2)Where
zit = (xit, xit*)′, αi is the speed of adjustment coefficients composing ki× ri matrix of
rank ri, and the co-integration vectors βi is a (ki + ki*)× ri matrix of rank ri.
The ri error-correction terms defined by the above model can now be followed as
βi′(zit − γit) = βix′xit + βix*
′x*it −(βi′ γi) t (3)
The GVAR(1) model for each country model Xt as: Gt = a10 + a1t + Hxt-1 + ut (4) G = (X1W1…XNWN)′, H = (B1W1…BNWN)′, a0 = (a10…aN0)′, a1 = (a11…aN1)′, ut = (u1t…uNt)′Where Wi : (ki + ki
*) × k matrix of fixed constants defined in terms of the country-specific weights
Methodology(cont.)
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Methodology (cont.)Estimation of the GVAR
Model 1, considering the VARX(1,1) as
xit = aio + ai1t + Φixit−1 + Λi0x*it + Λi1x*
it−1 + uit (1) xit = (hpit, yit, rit, mit, cit, housingit)', x*
i,t = (hp*it, y*it, r*it, m*it, c*it)'
hp*it = wij hpjt , y*it = wij yjt , r*it = wij rjt , m*it = wij mjt ; c*it = wij cjt ,
Model 2, the equation (1) can be augmented to investigate the Balassa-Samuelson effect as
xit =(hpit, yit, rit, mit, cit, housingit, openit)', x*it = (hp*it, y*it, r*it, m*it, c*it)‘
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N
j 1
N
j 1
N
j 1
N
j 1
N
j 1
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Methodology (cont.)Estimation of the GVAR
Model 3, the equation (1) can be changed to examine the housing wealth effect chains
xit = (hpit, yit, rit, mit, cit, housingit, openit, tbit)’x*
it = (hp*it , y*it , c*it , r*it , m*it )‘
WhereHp: house price index; y: the GDP; C: private consumption; r: interest
rates; m: money supply; housing: the share of housing in the GDP open: trade shares (exports + imports) in the GDP; tb: trade balance
hp*, y*, c*, r*and m*: the county-specific foreign variables (weakly exogenous ) with fixed trade weights computed by average trade
flows from 2006 to 2009
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Data − Quarterly data from 1991 Q1 to
2011 Q2 in Hong Kong, Japan, South Korea, Singapore, Taiwan and Thailand and house price indices in Hong Kong, Tokyo, Seoul, Singapore, Taipei and Bangkok
− Data is obtained from Bloomberg, Datastream and national sources
− Real data except for interest rates are used and seasonally adjusted. Also, apart from interest rates, housing and openness, all variables are calculated in changes in percentage.
Fluctuations of Real Housing Price Index 2000Q2=100
28
1991
Q1
1992
Q2
1993
Q3
1994
Q4
1996
Q1
1997
Q2
1998
Q3
1999
Q4
2001
Q1
2002
Q2
2003
Q3
2004
Q4
2006
Q1
2007
Q2
2008
Q3
2009
Q40
20
40
60
80
100
120
140
160
180
200
Hong Kong Taipei
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Fluctuations of Real Housing Price Index 2000Q2=100
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1991
Q1
1992
Q2
1993
Q3
1994
Q4
1996
Q1
1997
Q2
1998
Q3
1999
Q4
2001
Q1
2002
Q2
2003
Q3
2004
Q4
2006
Q1
2007
Q2
2008
Q3
2009
Q40
50
100
150
200
250
300
Tokyo Seoul
1991
Q1
1992
Q2
1993
Q3
1994
Q4
1996
Q1
1997
Q2
1998
Q3
1999
Q4
2001
Q1
2002
Q2
2003
Q3
2004
Q4
2006
Q1
2007
Q2
2008
Q3
2009
Q40
20
40
60
80
100
120
140
160
Singapore Bangkok
Methodology (cont.)Estimation of the GVAR
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Trade weightsUsing the average trade flows from 2006 to 2009 for each country/region to compute the weights of country-specific foreign variables
Source: Bloomberg. Note: Trade weights are calculated as shares of exports and imports showed in rows and sum to one.
Methodology (cont.)Estimation of the GVAR
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ResultsFollowing the Generalized Impulse Response
Function (Koop, Pesaran and Potter,1996; Pesaran and Shin, 1998) to estimate the dynamics of housing price diffusion effects Global Macro Shocks Based on Basic Model (Model 1)
− Defined as a weighted average (using PPP GDP weights) of variable-specific shocks across all the regions in the model
Openness Shock Based on Balassa-Samuelson Hypothesis Model (Model 2)
House Price Shocks Based on Housing Wealth Effect Chain Model (Model 3)
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Results (conts.)Global Macro Shocks Based on Basic Model (Model 1)
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Results (cont.) Global Macro Shocks Based on Basic Model (Model 1)
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Results (cont.) Openness Shock Based on Balassa-Samuelson Hypothesis
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Results (cont.) House Price Shock Based on Housing Wealth Effect Chain Model
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Estimated House Price Diffusion
45
Hong Kong Tokyo Seoul Singapore Taipei Bangkok
Hong Kong
− Small/None
+ Some
- Some
+Large
+Small/None
Tokyo + Some +
Large-
Some +
Some/None None
Seoul - Small None -
Small+
Some None
Singapore − Small None −
Small + Some None
Taipei None - Small
+ Small
- Small None
Bangkok + Small
− Small
- Small
+ Small
+ Small
+/− indicates positive or negative effect; large/some/small indicates the extent of house price index responses more than 1%, 0.5% and under 0.5%, respectively.
Trade partner
Main country
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Overall Conclusion House price in Hong Kong reacts rapidly in response to global
increases in world market, while those in Singapore only show sensitivity to global interest rates.
Tokyo and Singapore, which suggest a positive correlation between openness and house price, providing evidence of the Balassa-Samuelson effect.
Tokyo reveals the diffusion effects on house price via housing wealth effect chains.
A high degree of economic linkage between Japan and other Asian countries shows positive lead-lag relations in house prices across financial centres.
Region-specific conditions also play important roles as determinants of house prices, partly due to restrictive housing policies and demand-supply imbalances as in Singapore and Bangkok.
Future research will look into intra-regional dynamics of the house price diffusion in Taipei.
48