As an increasing number of customers choose to interact with service firms via technology, there is an urgent need to understand whether consumers react differently to technology-based failures/recovery efforts than human failures/recovery efforts. Using resource exchange theory as a framework,...

One of the most widely used option valuation models among practitioners is the ad hoc Black-Scholes (AHBS) model. The main contribution of this paper is methodological. We carefully consider two rollover strategies (nearest-to-next strategy and next-to-next) used in the AHBS model to investigate...

The ad hoc Black-Scholes (AHBS) model is one of the most widely used option valuation models among practitioners models. The main contribution of this study is methodological. We have two main results: (1) we make the empirical observation that typically the call and put sneers are discontinuous...

One of the most widely used option-valuation models among practitioners is the ad hoc Black-Scholes (AHBS) model. The main contribution of this study is methodological. We carefully consider three dividend strategies (No dividend, Implied-forward dividend, and Actual dividend) for the AHBS model...

This paper presents an analytic approximation formula for pricing zero-coupon bonds, when the dynamics of the short-term interest rate are driven by a one-factor mean-reverting process in which changes in the volatility of the interest rate are a function of the level of the interest rate

This paper proposes a simple two-factor model of nominal term structure of interest rates, in which the log-price kernel has an autoregressive drift process and a nonlinear GARCH volatility process. Given these two state-variable processes, closed-form expressions are derived for the zero-coupon...

Korean Abstract: 부실예측시 과거의 재무제표를 이용한 로지스틱 회귀모형 또는 주가를 이용한 옵션모형이 많이 사용되나 자료의 제약으로 모형의 유용성이 제약된다. 특히 국내의 경우 부도시점이 IMF사태 직후로 편중되어...

This paper presents a new methodology to approximate the yield and duration of a bond portfolio. We demonstrate that the duration-weighted average yield consistently underestimates the exact yield on a bond portfolio having positive convexity. By considering the convexity, we present a new...

This paper documents that median holding period in structured products based on market index is less than a day from initial purchase to liquidation even for retail investors. Less than 6% of all series ever traded by retail investors are held until maturity. More importantly, buy-and-hold...