This paper investigates continuous-time asset-liability management under benchmark and mean-variance criteria in a jump diffusion market. Specifically, the authors consider one risk-free asset, one risky asset and one...This paper investigates continuous-time asset-liability management under benchmark and mean-variance criteria in a jump diffusion market. Specifically, the authors consider one risk-free asset, one risky asset and one liability, where the risky asset＇s price is governed by an exponential Levy process, the liability evolves according to a Levy process, and there exists a correlation between the risky asset and the liability. Two models are established. One is the benchmark model and the other is the mean-variance model. The benchmark model is solved by employing the stochastic dynamic programming and its results are extended to the mean-variance model by adopting the duality theory. Closed-form solutions of the two models are derived.展开更多
In reality,when facing a multi-period asset-liability portfolio selection problem,the risk aversion attitude of a mean-variance investor may depend on the wealth level and liability level.Thus,in this paper,we propose...In reality,when facing a multi-period asset-liability portfolio selection problem,the risk aversion attitude of a mean-variance investor may depend on the wealth level and liability level.Thus,in this paper,we propose a state-dependent risk aversion model for the investor,in which risk aversion is a linear function of current wealth level and current liability level.Due to the time inconsistency of the resulting multi-period asset-liability mean-variance model,we investigate its time-consistent portfolio policy by solving a nested mean-variance game formulation.We derive the analytical time-consistent portfolio policy,which takes a linear form of current wealth level and current liability level.We also analyze the influence of the risk aversion coefficients on the time-consistent portfolio policy and the investment performance via a numerical example.展开更多
This paper studies the multi-period mean-variance(MV)asset-liability portfolio management problem(MVAL),in which the portfolio is constructed by risky assets and liability.It is worth mentioning that the impact of gen...This paper studies the multi-period mean-variance(MV)asset-liability portfolio management problem(MVAL),in which the portfolio is constructed by risky assets and liability.It is worth mentioning that the impact of general correlation is considered,i.e.,the random returns of risky assets and the liability are not only statistically correlated to each other but also correlated to themselves in different time periods.Such a model with a general correlation structure extends the classical multiperiod MVAL models with assumption of independent returns.The authors derive the explicit portfolio policy and the MV efficient frontier for this problem.Moreover,a numerical example is presented to illustrate the efficiency of the proposed solution scheme.展开更多
The asset-liability ratio of most listed companies in China is more than 50% and that of some unlisted companies is even higher. Debt financing has actually become an important source of funds for the companies. Faced...The asset-liability ratio of most listed companies in China is more than 50% and that of some unlisted companies is even higher. Debt financing has actually become an important source of funds for the companies. Faced with the description of over-indebtedness, the author put forward the method to make the definition of over-indebtedness creatively and carried out empirical research on the impact the over- indebtedness having on firm performance as well as optimal asset-liability ratio from the perspective of over-indebtedness and at the same time gave some relevant suggestions, which makes this study have an important practical significance.展开更多
This paper uses China's value-added tax(VAT)rate reform as a quasi-natural experiment to identify the impacts of VAT rate shocks on corporate financial leverage.The results indicate that the reform reduced corpora...This paper uses China's value-added tax(VAT)rate reform as a quasi-natural experiment to identify the impacts of VAT rate shocks on corporate financial leverage.The results indicate that the reform reduced corporate total leverage significantly.There was a decrease in short-term leverage,but long-term leverage showed no significant change.These results remained robust across a series of robustness checks.Mechanism analysis shows that increasing profitability and improving cash flows acted as intermediary channels for the reform's impact on leverage.The reform also contributed to the mitigation of the asset–liability mismatch problem and the reduction of debt risk,while having no apparent impact on corporate investments.Finally,enterprises with more elastic demand and those with lower intermediate input ratios were affected most by the deleveraging effect of the VAT rate reform.This study suggests how the VAT rate cut shaped corporate capital structure.It thus helps to explain the economic consequences of VAT rate shocks.展开更多
基金This research is supported by the National Science Foundation for Distinguished Young Scholars under Grant No. 70825002, the National Natural Science Foundation of China under Grant No. 70518001, and the National Basic Research Program of China 973 Program under Grant No. 2007CB814902.
文摘This paper investigates continuous-time asset-liability management under benchmark and mean-variance criteria in a jump diffusion market. Specifically, the authors consider one risk-free asset, one risky asset and one liability, where the risky asset＇s price is governed by an exponential Levy process, the liability evolves according to a Levy process, and there exists a correlation between the risky asset and the liability. Two models are established. One is the benchmark model and the other is the mean-variance model. The benchmark model is solved by employing the stochastic dynamic programming and its results are extended to the mean-variance model by adopting the duality theory. Closed-form solutions of the two models are derived.
基金This research was supported by the National Natural Science Foundation of China(Nos.71601107,71671106 and 71201094)Shanghai Pujiang Program(No.15PJC051)+1 种基金the State Key Program in the Major Research Plan of National Natural Science Foundation of China(No.91546202)Program for Innovative Research Team of Shanghai University of Finance and Economics.
文摘In reality,when facing a multi-period asset-liability portfolio selection problem,the risk aversion attitude of a mean-variance investor may depend on the wealth level and liability level.Thus,in this paper,we propose a state-dependent risk aversion model for the investor,in which risk aversion is a linear function of current wealth level and current liability level.Due to the time inconsistency of the resulting multi-period asset-liability mean-variance model,we investigate its time-consistent portfolio policy by solving a nested mean-variance game formulation.We derive the analytical time-consistent portfolio policy,which takes a linear form of current wealth level and current liability level.We also analyze the influence of the risk aversion coefficients on the time-consistent portfolio policy and the investment performance via a numerical example.
基金partially supported by the National Natural Science Foundation of China under Grant Nos.72201067,12201129,and 71973028the Natural Science Foundation of Guangdong Province under Grant No.2022A1515010839+1 种基金the Project of Science and Technology of Guangzhou under Grant No.202102020273the Opening Project of Guangdong Province Key Laboratory of Computational Science at Sun Yat-sen University under Grant No.2021004。
文摘This paper studies the multi-period mean-variance(MV)asset-liability portfolio management problem(MVAL),in which the portfolio is constructed by risky assets and liability.It is worth mentioning that the impact of general correlation is considered,i.e.,the random returns of risky assets and the liability are not only statistically correlated to each other but also correlated to themselves in different time periods.Such a model with a general correlation structure extends the classical multiperiod MVAL models with assumption of independent returns.The authors derive the explicit portfolio policy and the MV efficient frontier for this problem.Moreover,a numerical example is presented to illustrate the efficiency of the proposed solution scheme.
文摘The asset-liability ratio of most listed companies in China is more than 50% and that of some unlisted companies is even higher. Debt financing has actually become an important source of funds for the companies. Faced with the description of over-indebtedness, the author put forward the method to make the definition of over-indebtedness creatively and carried out empirical research on the impact the over- indebtedness having on firm performance as well as optimal asset-liability ratio from the perspective of over-indebtedness and at the same time gave some relevant suggestions, which makes this study have an important practical significance.
基金All authors contributed equally.The authors thank the reviewers for their valuable comments and acknowledge the generous support from the Fundamental Research Funds for the Central Universities of China.
文摘This paper uses China's value-added tax(VAT)rate reform as a quasi-natural experiment to identify the impacts of VAT rate shocks on corporate financial leverage.The results indicate that the reform reduced corporate total leverage significantly.There was a decrease in short-term leverage,but long-term leverage showed no significant change.These results remained robust across a series of robustness checks.Mechanism analysis shows that increasing profitability and improving cash flows acted as intermediary channels for the reform's impact on leverage.The reform also contributed to the mitigation of the asset–liability mismatch problem and the reduction of debt risk,while having no apparent impact on corporate investments.Finally,enterprises with more elastic demand and those with lower intermediate input ratios were affected most by the deleveraging effect of the VAT rate reform.This study suggests how the VAT rate cut shaped corporate capital structure.It thus helps to explain the economic consequences of VAT rate shocks.
