An Exploratory Study of the Propensity for South Koreans to take Cruises: Investigating Koreans' Perceptions of Cruise Ship Travel

The purpose of the present study was to examine Koreans' perceptions of cruise ship travel to ascertain the potential for future development of that tourism segment. An understanding of Koreans' perceptions is essential for determining the potential of the Korean cruise market. Using survey data, the study investigated Koreans' knowledge level, willingness and desired travel patterns regarding cruise ship travel. Findings from the study can assist practitioners to enhance their comprehension of Koreans' perceptions and behaviors concerning cruise ship travel. Copyright © 2011 John Wiley & Sons, Ltd.     

A Multiphase,Flexible, and Accurate Lattice for Pricing Complex Derivatives with Multiple Market Variables

With the rapid growth and the deregulation of financial markets, many complex derivatives have been structured to meet specific financial goals. Unfortunately, most complex derivatives have no analytical formulas for their prices, particularly when there is more than one market variable. As a result, these derivatives must be priced by numerical methods such as lattice. However, the nonlinearity error of lattices due to the nonlinearity of the derivative's value function could lead to oscillating prices. To construct an accurate, multivariate lattice, this study proposes a multiphase method that alleviates the oscillating problem by making the lattice match the “critical locations,” locations where nonlinearity of the derivative's value function occurs. Moreover, our lattice has the ability to model the jumps in the market variables such as regular withdraws from an investment account, which is hard to deal with analytically. Numerical results for vulnerable options, insurance contracts guaranteed minimum withdrawal benefit (GMWB), and defaultable bonds show that our methodology can be applied to the pricing of a wide range of complex financial contracts.     

The increasing financial obligations burden of US households: who is affected?

The purpose of this paper is to examine factors associated with changes in the proportion of households with high financial obligations ratios in the United States. The proportion of households paying more than 40% of income for debt, rent, vehicle leases, property taxes and homeowners’ insurance, which we refer to as having a heavy burden, increased from 18% in 1992 to 27% in 2007. Multivariate analysis of a combination of six Survey of Consumer Finances data sets indicates that the likelihood of having a heavy burden was positively associated with homeownership, self‐employment and retirement status. Those with an optimistic 5‐year expectation of the economy were more likely to be in a household with a heavy burden. Education was positively related to having a heavy burden, suggesting that having a heavy burden is not simply a cognitive error.     

Is Life Annuity an Effective Tool for Managing Longevity Risk in Korea?*

We examine optimal life annuity planning for Korean pre‐retirees with a focus on the optimal timing of annuitization. The objective is to maximize the expected total utility from consumption during the retirement period. Benchmark cases with various values for net wealth, proportion of net wealth that is annuitized at the time of retirement and level of risk aversion are applied. We confirm that life annuity is an effective tool for managing longevity risk in Korea and it is important to select the timing of annuitization carefully to maximize the expected total utility and to avoid unnecessary financial ruin during retirement. In addition, we find that the optimal annuity strategy is more beneficial for those with lower levels of wealth than others.     

Pricing of moving‐average‐type options with applications

Moving‐average‐type options are complex path‐dependent derivatives whose payoff depends on the moving average of stock prices. This article concentrates on two such options traded in practice: the moving‐average‐lookback option and the moving‐average‐reset option. Both options were issued in Taiwan in 1999, for example. The moving‐average‐lookback option is an option struck at the minimum moving average of the underlying asset's prices. This article presents efficient algorithms for pricing geometric and arithmetic moving‐average‐lookback options. Monte Carlo simulation confirmed that our algorithms converge quickly to the option value. The price difference between geometric averaging and arithmetic averaging is small. Because it takes much less time to price the geometric‐moving‐average version, it serves as a practical approximation to the arithmetic moving‐average version. When applied to the moving‐average‐lookback options traded on Taiwan's stock exchange, our algorithm gave almost the exact issue prices. The numerical delta and gamma of the options revealed subtle behavior and had implications for hedging. The moving‐average‐reset option was struck at a series of decreasing contract‐specified prices on the basis of moving averages. Similar results were obtained for such options with the same methodology. © 2003 Wiley Periodicals, Inc. Jrl Fut Mark 23:415–440, 2003     

An expanded model for the valuation of employee stock options

The unique characteristics of employee stock options make straightforward applications of traditional option pricing models questionable. This study extends the standard pricing model to account for the dilution effect, the employees' exercise pattern, and the state‐dependent employee forfeiture rate. It also performs comparative analysis of popular existing models and the proposed models. Finally, the impacts of the above‐mentioned factors on the fair value of employee stock options are investigated. The results support the claim that our models reflect the reality better than existing models. © 2009 Wiley Periodicals, Inc. Jrl Fut Mark 29:713–735, 2009