Abstract:
A series of financial crises have shown that although moderate leverage can promote economic development, over-leverage often causes asset price bubbles and systemic risks, resulting in considerable negative impacts on the financial sector and the real economy. This paper constructs a leverage-based asset price bubble model, revealing the inherent logical relationship between leverage and asset price bubbles. With the stock price bubble and housing price bubble representing the asset price bubble, we use the quantile method to study the non-linearity and asymmetric effect of leverage on the asset price bubble from the four dimensions of macro leverage, financial-sector leverage, non-financial-sector leverage and government leverage. The results show that the impact of leverage on asset price bubbles changes in size and direction with different periods of economic development, the degree of bubble evolution and the level of leverage, even if the same level of leverage has different effects on asset price bubble in different stages of bubble. Therefore, the relevant regulatory authorities need to combine the impact mechanism of leverage on the asset price bubble and distinguish the degrees of the bubble to optimize the leverage structure and maintain a reasonable leverage. This helps to avoid a systemic financial risk caused by asset price bubbles.
刘晓星, 石广平. 杠杆对资产价格泡沫的非对称效应研究[J]. 金融研究, 2018, 453(3): 53-70.
LIU Xiaoxing, SHI Guangping. The Asymmetrical Effects of Leverages on Asset Price Bubbles. Journal of Financial Research, 2018, 453(3): 53-70.
[1]陈长石和刘晨晖, 2015,《利率调控、货币供应与房地产泡沫——基于泡沫测算与MS-VAR模型的实证分析》,《国际金融研究》第10期, 第21~31页。 [2]黄鑫和周亚虹, 2012, 《利率扭曲与资产泡沫》,《国际金融研究》第8期, 第26~37页。 [3]贾庆英和孔艳芳, 2016, 《资产价格、经济杠杆与价格传递——基于国际PVAR模型的实证研究》,《国际金融研究》第1期, 第28~37页。 [4]刘宪, 2008, 《资产泡沫与经济增长关系研究进展》,《经济学动态》第7期, 第122~126页。 [5]马勇、田拓和阮卓阳等, 2016, 《金融杠杆、经济增长与金融稳定》,《金融研究》第6期, 第37~51页。 [6]孟庆斌和荣晨, 2017, 《中国房地产价格泡沫研究--基于马氏域变模型的实证分析》, 《金融研究》第2期,第101~116页。 [7]张成思、刘泽豪和罗煜,2014,《中国商品金融化分层与通货膨胀驱动机制》,《经济研究》第1期,第140~154页。 [8]赵鹏和曾剑云, 2008, 《我国股市周期性破灭型投机泡沫实证研究—基于马尔可夫区制转换方法》,《金融研究》第4期, 第174~186页。 [9]赵胜民、方意和王道平, 2011, 《金融信贷是否中国房地产、股票价格泡沫和波动的原因——基于有向无环图的分析》,《金融研究》第12期, 第62~76页。 [10]Abreu, D. and M. K. Brunnermeier, 2003, “Bubbles and Crashes” Econometrica, 71(1): 173~204. [11]Allen, F. and D. Gale, 2000, “Bubbles and Crises” The Economic Journal, 110(460): 236~255. [12]Allen, F., S. Morris and A. Postlewaite, 1993, “Finite Bubbles with Short Sale Constraints and Asymmetric Information”Journal of Economic Theory, 61: 206~229. [13]Barlevy, G., 2014, “A Leverage-based Model of Speculative Bubbles”Journal of Economic Theory, 153: 459~505. [14]Blanchard, O. J., 1979, “Speculative Bubbles, Crashes and Rational Expectations” Economics Letters, 3(4): 387~389. [15]Chuang, C. C., C. M. Kuan and H. Y. Lin, 2009, “Causality in Quantiles and Dynamic Stock Return–volume relations” Journal of Banking & Finance, 33(7): 1351~1360. [16]De Long, J. B., A. Shleifer and L. H. Summers, et al., 1990, “Positive Feedback Investment Strategies and Destabilizing rational Speculation” The Journal of Finance, 45(2): 379~395. [17]Ding, H., H. G. Kim and S. Y. Park, 2016, “Crude Oil and Stock Markets: Causal Relationships in Tails?”Energy Economics, 59: 58~69. [18]Dow, J. and J. Han, 2015, “Contractual Incompleteness, Limited Liability and Asset Price Bubbles”Journal of Financial Economics, 116(2): 383~409. [19]Enders, Z. and H. Hakenes, 2016, “Leverage and Speculative Bubbles”. [20]Jarrow , R. A., P. Protter and A. F. Roch A, 2012, “Liquidity-based Model for Asset Price Bubbles”Quantitative Finance, 12(9): 1339~1349. [21]Jordà, Ò., M. Schularick and A. M. Taylor, 2015, “Leveraged Bubbles”, Journal of Monetary Economics, 76: S1~S20. [22]Nneji, O., 2015,“Liquidity Shocks and Stock Bubbles”Journal of International Financial Market, Institutions & Money, 35: 132~146. [23]Schiller, R. J., 2000, Irrational Exuberance, Princeton UP. [24]Scheinkman, J. A. and W. Xiong, 2003, “Overconfidence and Speculative Bubbles”Journal of Political Economy, 111(6): 1183~1220. [25]Zhu, H., X. Su and Y. Guo, et al., 2016, “The Asymmetric Effects of Oil Price Shocks on the Chinese Stock Market: Evidence from a Quantile Impulse Response Perspective” Sustainability, 8(8): 766.