Zero-utility principle is one of the main premium pricing principles,which has been widely used in insurance practice.In this paper,the nonparametric estimation of zero-utility premium is given.In addition,the consist...Zero-utility principle is one of the main premium pricing principles,which has been widely used in insurance practice.In this paper,the nonparametric estimation of zero-utility premium is given.In addition,the consistency and asymptotic normality of the estimation are proved.Some special cases including linear,exponential and quadratic utility are discussed.Finally,the Monte Carlo method is used to show the convergence rate of premium estimation.Furthermore,the histogram and Normal-Probability-Plot are given to investigate the asymptotic normality of the estimators.The results show that our estimations are good enough to use in practice.展开更多
This paper studies a defined contribution(DC)pension fund investment problem with return of premiums clauses in a stochastic interest rate and stochastic volatility environment.In practice,most of pension plans were s...This paper studies a defined contribution(DC)pension fund investment problem with return of premiums clauses in a stochastic interest rate and stochastic volatility environment.In practice,most of pension plans were subject to the return of premiums clauses to protect the rights of pension members who died before retirement.In the mathematical modeling,we assume that a part of pension members could withdraw their premiums if they died before retirement and surviving members could equally share the difference between accumulated contributions and returned premiums.We suppose that the financial market consists of a risk-free asset,a stock,and a zero-coupon bond.The interest rate is driven by a stochastic affine interest rate model and the stock price follows the Heston’s stochastic volatility model with stochastic interest rates.Different fund managers have different risk preferences,and the hyperbolic absolute risk aversion(HARA)utility function is a general one including a power utility,an exponential utility,and a logarithm utility as special cases.We are concerned with an optimal portfolio to maximize the expected utility of terminal wealth by choosing the HARA utility function in the analysis.By using the principle of dynamic programming and Legendre transform-dual theory,we obtain explicit solutions of optimal strategies.Some special cases are also derived in detail.Finally,a numerical simulation is provided to illustrate our results.展开更多
This paper concerns an optimal dividend-penalty problem for the risk models with surplus-dependent premiums.The objective is to maximize the difference of the expected cumulative discounted dividend payments received ...This paper concerns an optimal dividend-penalty problem for the risk models with surplus-dependent premiums.The objective is to maximize the difference of the expected cumulative discounted dividend payments received until the moment of ruin and a discounted penalty payment taken at the moment of ruin.Since the value function may be not smooth enough to be the classical solution of the HJB equation,the viscosity solution is involved.The optimal value function can be characterized as the smallest viscosity supersolution of the HJB equation and the optimal dividend-penalty strategy has a band structure.Finally,some numerical examples with gamma distribution for the claims are analyzed.展开更多
This study examines the pricing of municipal bonds before and after a currency shock in Switzerland.Two approaches are used to decompose the municipal to treasuries bond spreads into liquidity,maturity,and default ris...This study examines the pricing of municipal bonds before and after a currency shock in Switzerland.Two approaches are used to decompose the municipal to treasuries bond spreads into liquidity,maturity,and default risk premiums.The first approach is the model of the cross-sectional instrumental variables,and the second approach is the model of the instrumental variables with panel data.This study examines the composition of spreads for both approaches,in three scenarios:before,throughout,and after the currency shock.The study performed Durbin-Wu-Hausman tests for each decisive model to verify endogeneity issues,including the Lagrangian Multiplier test,the Cragg-Donald Wald F statistic to confirm the relationship of instrumental and endogenous variables,and the structural break test(Bai-Perron test)to determine the existence of structural breaks in bond distortions.This study finds that the currency price distortions of the Swiss franc in January 2015 made long-run changes in the composition of the municipal bond spreads.This research contributes to the understanding of municipal bond pricing by showing that default risk accounts for a large portion of the municipal bond spread,while maturity risk plays a lesser role.According to our empirical findings,unexpected large currency price shocks may have long-term implications on the municipal bond spreads.展开更多
China’s uninterrupted high-speed economic growth depends on promoting the process of industrialization.Based on provincial data during 2003-2016,this paper empirically estimates the impact of labor costs on China’s ...China’s uninterrupted high-speed economic growth depends on promoting the process of industrialization.Based on provincial data during 2003-2016,this paper empirically estimates the impact of labor costs on China’s industrialization and examines its mechanism and path.The results show that the rising labor costs such as wages and social security premiums may lead to China’s“de-industrialization”.With endogeneity excluded,the conclusion still holds.The following policy suggestions are proposed:increasing the effective labor supply in the industrial sector to slow down the increase in wages,implementing social insurance premium reform to reduce social security premium rate,reversing the situation of investment“fl eeing from the real economy and into the virtual economy”in a multi-pronged manner,and optimizing the combination of labor,capital and technology in various ways.展开更多
Through analyzing the components of convertible bond＇s value, this paper studied the determinants of premiums of Chinese CBs. According to this research, the premiums in fixed period are significantly higher than tha...Through analyzing the components of convertible bond＇s value, this paper studied the determinants of premiums of Chinese CBs. According to this research, the premiums in fixed period are significantly higher than that in conversion period due to legal constraints. The premiums in conversion period are negatively related to conversion value, risk-free interest rate, whether the issuing firm has right to advance repayment, whether in selling back period, and additional selling back price, and are positively related to exercise price, risk, and redemption price.展开更多
This paper analyzes the evolution of the insurance sector in Europe, focuses on the European Union （EU） member states, and considers the impact of economic and financial crisis on that sector. The European private i...This paper analyzes the evolution of the insurance sector in Europe, focuses on the European Union （EU） member states, and considers the impact of economic and financial crisis on that sector. The European private insurance market is a developed market having an investment portfolio of 7,740 billion euros in 2011, an amount corresponding to 55% of the gross domestic product （GDP） of the 32 European markets members of Insurance Europe. Therefore, the importance of this sector as a long-term investor and major employer is obvious for the stability and growth of European economy. However, the insurance sector has been considerably affected since 2009 due to the global economic and financial crisis, which has had negative effects not only on the evolution of the value of insurance premiums underwritten, but also on the return on investment of the insurance companies.展开更多
This paper examines the role of innovation in firm performance by drawing empirical evidence from the capital market. The current study analyzes risk premiums and risk-adjusted excess returns of a portfolio of the mos...This paper examines the role of innovation in firm performance by drawing empirical evidence from the capital market. The current study analyzes risk premiums and risk-adjusted excess returns of a portfolio of the most innovative firms in the US from 2006 to 2010. The results show that average risk premiums of an equal-weighted portfolio of the most innovative finns in the US are economically larger than the CRSP2 value-weighted index risk premiums four years in a row from 2006 to 2009 and are economically greater than the standard and poor （S＆P） 500 index risk premiums from 2006 to 2010. The portfolio exhibits average statistically significant and positive risk-adjusted excess returns for the 3-year and 5-year holding period intervals. The findings serve as evidence of the favorable role of innovation in firm performance.展开更多
Using detailed Chinese manufacturing firm production and trade data from 2000 to 2006,this study finds that offshoring significantly increases firms’average wages.First,using the quasi-natural experiment of China'...Using detailed Chinese manufacturing firm production and trade data from 2000 to 2006,this study finds that offshoring significantly increases firms’average wages.First,using the quasi-natural experiment of China's accession to the World Trade Organization,we investigate how a reduction in offshoring costs affects the manufacturing firm's wages and find that a productivity effect and a job-relocation effect are two possible channels.Second,the dynamic decomposition of industry-level wages indicates that the within-firm effect is 0.547,accounting for 31.5 percent of the total variation.Finally,a Mincer-type regression shows that offshoring also increases within-firm skill premiums.Our findings have strong implications for the government related to framing appropriate industrial policies to raise wages and reduce income inequality.展开更多
基金Supported in part by the National Natural Science Foundation of China under Grant Nos.71761019 and71563021the Natural science foundation of Jiangxi Province under Grant No.20171ACB21022
文摘Zero-utility principle is one of the main premium pricing principles,which has been widely used in insurance practice.In this paper,the nonparametric estimation of zero-utility premium is given.In addition,the consistency and asymptotic normality of the estimation are proved.Some special cases including linear,exponential and quadratic utility are discussed.Finally,the Monte Carlo method is used to show the convergence rate of premium estimation.Furthermore,the histogram and Normal-Probability-Plot are given to investigate the asymptotic normality of the estimators.The results show that our estimations are good enough to use in practice.
基金supported by the National Social Science Foundation of China (No.21FJYB042)。
文摘This paper studies a defined contribution(DC)pension fund investment problem with return of premiums clauses in a stochastic interest rate and stochastic volatility environment.In practice,most of pension plans were subject to the return of premiums clauses to protect the rights of pension members who died before retirement.In the mathematical modeling,we assume that a part of pension members could withdraw their premiums if they died before retirement and surviving members could equally share the difference between accumulated contributions and returned premiums.We suppose that the financial market consists of a risk-free asset,a stock,and a zero-coupon bond.The interest rate is driven by a stochastic affine interest rate model and the stock price follows the Heston’s stochastic volatility model with stochastic interest rates.Different fund managers have different risk preferences,and the hyperbolic absolute risk aversion(HARA)utility function is a general one including a power utility,an exponential utility,and a logarithm utility as special cases.We are concerned with an optimal portfolio to maximize the expected utility of terminal wealth by choosing the HARA utility function in the analysis.By using the principle of dynamic programming and Legendre transform-dual theory,we obtain explicit solutions of optimal strategies.Some special cases are also derived in detail.Finally,a numerical simulation is provided to illustrate our results.
基金supported by National Natural Science Foundation of China(11471218)Hebei Higher School Science and Technology Research Projects(ZD20131017)Joint Doctoral Training Foundation of HEBUT(2018GN0001)。
文摘This paper concerns an optimal dividend-penalty problem for the risk models with surplus-dependent premiums.The objective is to maximize the difference of the expected cumulative discounted dividend payments received until the moment of ruin and a discounted penalty payment taken at the moment of ruin.Since the value function may be not smooth enough to be the classical solution of the HJB equation,the viscosity solution is involved.The optimal value function can be characterized as the smallest viscosity supersolution of the HJB equation and the optimal dividend-penalty strategy has a band structure.Finally,some numerical examples with gamma distribution for the claims are analyzed.
文摘This study examines the pricing of municipal bonds before and after a currency shock in Switzerland.Two approaches are used to decompose the municipal to treasuries bond spreads into liquidity,maturity,and default risk premiums.The first approach is the model of the cross-sectional instrumental variables,and the second approach is the model of the instrumental variables with panel data.This study examines the composition of spreads for both approaches,in three scenarios:before,throughout,and after the currency shock.The study performed Durbin-Wu-Hausman tests for each decisive model to verify endogeneity issues,including the Lagrangian Multiplier test,the Cragg-Donald Wald F statistic to confirm the relationship of instrumental and endogenous variables,and the structural break test(Bai-Perron test)to determine the existence of structural breaks in bond distortions.This study finds that the currency price distortions of the Swiss franc in January 2015 made long-run changes in the composition of the municipal bond spreads.This research contributes to the understanding of municipal bond pricing by showing that default risk accounts for a large portion of the municipal bond spread,while maturity risk plays a lesser role.According to our empirical findings,unexpected large currency price shocks may have long-term implications on the municipal bond spreads.
基金National Social Science Fund:“The Effectiveness of Industrial Policies on Industrial Upgrading under the Background of Supply-Side Structural Reform”(18BJY100).
文摘China’s uninterrupted high-speed economic growth depends on promoting the process of industrialization.Based on provincial data during 2003-2016,this paper empirically estimates the impact of labor costs on China’s industrialization and examines its mechanism and path.The results show that the rising labor costs such as wages and social security premiums may lead to China’s“de-industrialization”.With endogeneity excluded,the conclusion still holds.The following policy suggestions are proposed:increasing the effective labor supply in the industrial sector to slow down the increase in wages,implementing social insurance premium reform to reduce social security premium rate,reversing the situation of investment“fl eeing from the real economy and into the virtual economy”in a multi-pronged manner,and optimizing the combination of labor,capital and technology in various ways.
文摘Through analyzing the components of convertible bond＇s value, this paper studied the determinants of premiums of Chinese CBs. According to this research, the premiums in fixed period are significantly higher than that in conversion period due to legal constraints. The premiums in conversion period are negatively related to conversion value, risk-free interest rate, whether the issuing firm has right to advance repayment, whether in selling back period, and additional selling back price, and are positively related to exercise price, risk, and redemption price.
文摘This paper analyzes the evolution of the insurance sector in Europe, focuses on the European Union （EU） member states, and considers the impact of economic and financial crisis on that sector. The European private insurance market is a developed market having an investment portfolio of 7,740 billion euros in 2011, an amount corresponding to 55% of the gross domestic product （GDP） of the 32 European markets members of Insurance Europe. Therefore, the importance of this sector as a long-term investor and major employer is obvious for the stability and growth of European economy. However, the insurance sector has been considerably affected since 2009 due to the global economic and financial crisis, which has had negative effects not only on the evolution of the value of insurance premiums underwritten, but also on the return on investment of the insurance companies.
文摘This paper examines the role of innovation in firm performance by drawing empirical evidence from the capital market. The current study analyzes risk premiums and risk-adjusted excess returns of a portfolio of the most innovative firms in the US from 2006 to 2010. The results show that average risk premiums of an equal-weighted portfolio of the most innovative finns in the US are economically larger than the CRSP2 value-weighted index risk premiums four years in a row from 2006 to 2009 and are economically greater than the standard and poor （S＆P） 500 index risk premiums from 2006 to 2010. The portfolio exhibits average statistically significant and positive risk-adjusted excess returns for the 3-year and 5-year holding period intervals. The findings serve as evidence of the favorable role of innovation in firm performance.
基金This research was financially supported by the National Social Science Foundation of China(No.20AJY014)the Social Science Foundation of Jiangsu Province(No.20EYA002),and the Key Project of Philosophy and Social Science Research in Colleges and Universities in Jiangsu Province(No.2018SJZDA011)The authors thank two anonymous reviewers for their helpful comments and suggestions for improving this paper.
文摘Using detailed Chinese manufacturing firm production and trade data from 2000 to 2006,this study finds that offshoring significantly increases firms’average wages.First,using the quasi-natural experiment of China's accession to the World Trade Organization,we investigate how a reduction in offshoring costs affects the manufacturing firm's wages and find that a productivity effect and a job-relocation effect are two possible channels.Second,the dynamic decomposition of industry-level wages indicates that the within-firm effect is 0.547,accounting for 31.5 percent of the total variation.Finally,a Mincer-type regression shows that offshoring also increases within-firm skill premiums.Our findings have strong implications for the government related to framing appropriate industrial policies to raise wages and reduce income inequality.
