On option pricing in binomial market with transaction costs

Option replication is studied in a discrete-time framework with proportional transaction costs. The model represents an extension of the Cox-Ross-Rubinstein binomial option-pricing model to cover the case of proportional transaction costs for one risky asset with different interest rates on bank credit and deposit. Contingent claims are supposed to be 2-dimensional random variables. Explicit formulas for self-financing strategies are obtained for this case.Received: March 2004, Mathematics Subject Classification (2000): 62P05JEL Classification: G11, G13The authors are grateful to an anonymous referee for numerous helpful comments and to Yulia Romaniuk for final corrections. The paper was partially supported by grant NSERC 264186.     

流出人口与农村家庭户特征——基于流出地的分析

从迁出地(农村)角度出发,利用五普千分之一原始数据,以家庭户为基本分析单位,比较了有迁出人口和没有迁出人口的家庭户的部分特征差异,利用Logistic回归和负二项回归,分别分析家庭特征对人口迁出及迁出人数的影响作用。回答的问题是:什么样的家庭户才会有迁出人口。证明了所提出的假设:在以家庭或家族为经济活动单位的当今中国,个人的迁移行为,除受个人因素及社会经济因素的影响之外,家庭户的各种特征对人口迁移有着显著的影响作用。     

A series of persuasive events. Sequencing effects of negative and positive messages on party evaluations and perceptions of negativity

We test how party evaluations and perceptions of negativity are affected by sequences of positive/negative persuasive messages. In an experimental survey collected in Denmark, respondents were exposed to either a positive or a negative message on three issues in a random order; this creates a setting where we can test for the effects of eight different sequences of positive and/or negative messages. We find consistent effects. Being exposed to a higher volume of negative messages often depresses evaluations of the target, whereas being exposed to a higher volume of positive messages enhances evaluation of the sponsor. These effects are nuanced by recency effects: when a sequence ends on a negative message, regardless of its overall valence, evaluation of the target is depressed; similarly, negatively valenced sequences harm the target except when the sequence ends on a positive message. Backlash effects are unlikely, and no sequence simultaneously harms the target and promotes a positive evaluation of the sponsor. Finally, negatively valenced sequences of messages enhance perceptions of negativity, whereas positively valenced sequences do not reduce it; this trend is also nuanced by recency effects.     

Consumer social voice in the age of social media: Segmentation profiles and relationship marketing strategies

Service failures, once handled quietly by customer service departments, are now played out on a highly public social media stage. These failures can result in not only the loss of a loyal consumer but also can negatively affect relationships with those watching the dialogue between disgruntled customers and organizations. The phenomenon of seeking resolution to service failures online is distinct from both traditional word-of-mouth and voice behaviors. This article introduces social voice: public complaining behavior that aims to change the behavior of the organization. A qualitative methodology defines eight dimensions of social voice and categorizes them by the strength of the relationship to the organization. Results indicate that appropriate response strategies differ based on social voice segment.     

Timeliness,transparency, and trust: A framework for managing online customer complaints

This article discusses several practical solutions for dealing with online customer complaints. Online complaints are inevitable; how a firm responds can make the difference. There are techniques that managers can use not only to minimize the detrimental impact of online complaints, but also to produce beneficial outcomes. Herein, we introduce our 3T framework, designed to help managers and support teams respond to online complaints in a thoughtful and measured way. We build on word-of-mouth research and several theories from marketing, service marketing, journalism, and business ethics. With so many reviews posted online every second, firms must employ best practices grounded in empirical research and solid conceptualization to deal with this important component of online customer service.     

It takes two to interact – Service orientation,negative emotions and customer phubbing in retail service work

The purpose of this paper is to empirically explore the relationship between frontline employees' service orientation, negative emotions and handling strategies during situations of customer incivility involving phubbing. In such situations, the logic and the practical implications of service orientation are challenged. Drawing on a survey of 2,940 employees in the Swedish retail sector, the paper shows that service orientation impacts upon how situations involving difficult customers are handled, and that this impact is mediated by employees’ negative emotional reactions. The paper contributes to retail management by pointing to the limitations of solely relying on service orientation and similar ideals in situations of customer incivility.     

Standing up for or against: A text-mining study on the recommendation of mobile payment apps

Mobile payment systems offer enormous potential as alternative payment solutions. However, the diffusion of mobile payments over the years has been less than optimal despite the numerous studies that have explored the reasons for its adoption. Consequently, there is an increased interest in exploring alternative actions for promoting its diffusion, especially user recommendation of the technology. This is because positive recommendations can enormously influence the decisions of potential consumers to use the technology while negative recommendations can increase resistance to it. The few extant studies in this domain have followed the traditional survey approach with hypothetic-deductive reasoning, thus limiting an understanding of factors outside their conceptual models that could influence recommendations. To address this shortcoming, this study uses a qualitative text-mining approach that explores themes from user reviews of mobile payment applications (apps). Using 5955 reviews from 16 mobile payment apps hosted on the Google Play store, this study applied the latent Dirichlet allocation (LDA) text-mining method to extract themes from the reviews that help to explain why users provide positive or negative recommendations about mobile payment systems. A total of 13 themes (i.e. ease of use, usefulness, convenience, security, reliability, satisfaction, transaction speed, time-saving, customer support, output quality, perceived cost, usability and trust) were generated from the LDA model which provides both theoretical and practical insights for advancing mobile payments diffusion and research.     

Examining impacts of negative reviews and purchase goals on consumer purchase decision

Extensive literature has studied the impact of positive online reviews on consumers’ purchase decisions. Research on the role of negative reviews in consumer price perception is heavily under-investigated. This study examines effects of negative reviews on consumer price perception and subsequent purchase behavior while considering the moderating effect of purchase goals. Results from two experiments show that the proportion of negative reviews has stronger negative impacts on purchase decision for consumers with a purchase goal than those without. This research contributes to growing knowledge about negative online reviews and consumer goal literature and offers practical implications for online retailers.     

Moving forward: Balancing the financial and emotional costs of business failure

Why do owner-managers delay business failure when it is financially costly to do so? In this paper we acknowledge that delaying business failure can be financially costly to the owner-manager and the more costly the delay, the more difficult the recovery. But we complement this financial perspective by introducing the notion of anticipatory grief as a mechanism for reducing the level of grief triggered by the failure event, which reduces the emotional costs of business failure. We propose that under some circumstances delaying business failure can help balance the financial and emotional costs of business failure to enhance an owner-manager's overall recovery — some persistence may be beneficial to recovery and promote subsequent entrepreneurial action.     

Predicting future consumer purchases in grocery retailing with the condensed Poisson lognormal model

To identify the effect of marketing actions on consumer purchasing, analysts must disentangle the dynamic component of purchasing from expected period-to-period stochastic fluctuations. This is done by comparing marketplace observations to the conditional expectation of future purchasing. Current methods of deriving the conditional expectation contain systematic bias and rely on certain unrealistic modelling assumptions. We therefore propose a new model to predict future consumer purchases in grocery retailing. The new model is a mixture of Erlang-2, Poisson and lognormal distributions or a condensed Poisson lognormal model (CPLN). Using two grocery retailing datasets from the UK, we demonstrate that the CPLN model predicts future consumer purchases well with error of 7% and 9%, respectively. Compared with the previous benchmark model, the condensed Negative Binominal Distribution (CNBD), the CPLN model reduces error by 50% (7% versus 14%) and 67% (9% versus 27%), respectively. Theoretical and practical implications for retailers are discussed.