结合教学案例探析情境教学法在大学英语教学中的应用

本文首先探讨了情境教学法的理论依据、功能、使用原则和方法,然后结合教学案例和问卷调查重点分析了情境教学法在大学英语教学中的实际应用、教学效果以及在教学中需要注意的问题,认为情境性教学法能够提高学生的学习兴趣、学习效果和学习能力,是比较适合基于计算机网络和课堂的现代大学英语教学模式。     

How close a relationship does a capital market have with other such markets? The case of Taiwan from the Asian financial crisis

In assessing how far and how close the relationships are between the Taiwan capital market and other international capital markets in Asian financial case, we examine the co-movement patterns by developing the “unequal variance test”. We find that a closer relationship exists between Taiwan and Hong Kong throughout the sample period than between Taiwan and other Asian countries and the US. It thus appears that adjacent regions with similar backgrounds in terms of their capital markets will reflect price patterns that are more similar to those of Taiwan than those of countries with which Taiwan frequently trades or cooperates.     

The path dependence of organizational reputation: how social judgment influences assessments of capability and character

Drawing upon theory on social judgments and impression formation from social psychology, this paper explores the socio‐cognitive processes that shape the formation of favorable and unfavorable organizational reputations. Specifically, we suggest that stakeholders make distinctions between an organization's capabilities and its character. We explain the nature and function of each and articulate the manner in which judgment heuristics and biases manifest in the development of capability and character reputations. In doing so, this research explores both the positive and negative sides of organizational reputation by examining the manner in which different types of reputations are built or damaged, and how these processes influence the ability of managers to enhance and protect these reputations. Copyright © 2011 John Wiley & Sons, Ltd.     

Heavy lies the crown? How job anxiety affects top executive decision making in gain and loss contexts

Research summary: Despite abundant anecdotal evidence that many top executives experience anxiety in their jobs, the upper echelons literature has remained largely silent on the organizational implications of executive job anxiety. In this study, we theorize that job anxiety will cause executives to (1) create a social buffer against threats by surrounding themselves with supportive decision‐making teams, and (2) pursue lower‐risk firm strategies. We further argue that these effects will vary depending upon whether strategic decisions occur in gain versus loss contexts. We test our ideas using a novel multisource, multimethod approach that includes data from 84 top executives of large organizations, their decision‐making teams, their friends and families, and archival sources. Results from an analysis of 154 major strategic decisions provide general support for our theory. Managerial summary: Although many top executives experience anxiety in their jobs, some struggle more with anxiety than others. Our paper is the first to focus on how job anxiety affects executives' decisions. We analyze 154 major strategic decisions made by 84 top executives of large organizations in a range of industries, collecting data from personal interviews with executives and surveys of their decision‐making teams, spouses, and friends. We find that anxious executives take fewer strategic risks, especially when things are going well. We further argue that anxious executives focus more on “buffering” themselves from threats, and find that they surround themselves with close supporters when times are tough. Our results demonstrate a pattern through which anxiety causes top executives to focus more heavily on avoiding potential threats. Copyright © 2015 John Wiley & Sons, Ltd.     

Earthquake or glacier? How CEO charisma manifests in firm strategy over time

Numerous studies have focused on CEO charisma as an antecedent to firm performance, but this literature has largely overlooked the possibility that charisma manifests in more proximal strategic initiatives that (unlike performance) are largely under the CEO's control. In this study, we integrate perspectives from the upper echelons and charismatic leadership literatures to argue that CEO charisma influences year‐over‐year strategic change, the degree to which strategies deviate from industry central tendencies, and the degree of emphasis on corporate social responsibility. We also theorize that, depending on the outcome in question, the effects of charisma can become both amplified and diminished as CEO tenure advances. Employing a novel data collection approach for a sample of 113 S&P 500 CEOs, we find broad support for our theory. Copyright © 2014 John Wiley & Sons, Ltd.     

Throwing caution to the wind: The effect of CEO stock option pay on the incidence of product safety problems

Stock options are thought to align the interests of CEOs and shareholders, but scholars have shown that options sometimes lead to outcomes that run counter to what they are meant to achieve. Building on this research, we argue that options promote a lack of caution in CEOs that manifests in a higher incidence of product safety problems. We also posit that this relationship varies across CEOs, and that the effect of options will depend upon CEO characteristics such as tenure and founder status. Analyzing product recall data for a large sample of FDA‐regulated companies, we find support for our theory. Copyright © 2014 John Wiley & Sons, Ltd.     

Regret minimization in repeated matrix games with variable stage duration

Regret minimization in repeated matrix games has been extensively studied ever since Hannan's seminal paper [Hannan, J., 1957. Approximation to Bayes risk in repeated play. In: Dresher, M., Tucker, A.W., Wolfe, P. (Eds.), Contributions to the Theory of Games, vol. III. Ann. of Math. Stud., vol. 39, Princeton Univ. Press, Princeton, NJ, pp. 97–193]. Several classes of no-regret strategies now exist; such strategies secure a long-term average payoff as high as could be obtained by the fixed action that is best, in hindsight, against the observed action sequence of the opponent. We consider an extension of this framework to repeated games with variable stage duration, where the duration of each stage may depend on actions of both players, and the performance measure of interest is the average payoff per unit time. We start by showing that no-regret strategies, in the above sense, do not exist in general. Consequently, we consider two classes of adaptive strategies, one based on Blackwell's approachability theorem and the other on calibrated play, and examine their performance guarantees. We further provide sufficient conditions for existence of no-regret strategies in this model.     

卡莱茨基和温特劳布的有效需求理论述评

本文在前人工作的基础上，将卡莱茨基有效需求理论的各个因素整理成首尾一致的完整体系，并讨论了温特劳布的有效需求理论与卡莱茨基体系之间的继承关系和发展脉络。在此基础上，文章指出两位学者的理论还存在一些需要改进的缺陷。卡莱茨基体系的微观基础存在某些逻辑矛盾，而温特劳布体系则存在循环论证的问题。这说明，我们在借鉴和运用后凯恩斯主义有效需求理论时，不能机械照搬，而是要根据中国的实际情况有所发展。     

Does experience help or hinder top managers? Working with different types of resources in Hollywood

Research summary: Research on the resource‐based view has begun to place more emphasis on the ability of managers to extract better performance from the resources that are available to them. In this paper, we show that prior experience can both help and hinder their ability to generate performance from various categories of resources. Further, we argue that the fungibility of each resource influences the opportunities managers have to use their experiences in order to find the best method to deploy them. We test our hypotheses by examining the ability of Hollywood film producers to generate results from financial, brand, and human resources. Our findings show that experienced producers can generate better performance from more fungible resources, but they actually achieve weaker results with less fungible resources. Managerial summary: Do more experienced top managers get better results from their resources? We examine this question for Hollywood film producers. Our results show that experience can really help when producers work with resources such as cash (budgets) and brand resources (such as film sequels). However, such experiences actually reduce performance when they work with some human resources, such as highly talented directors. We argue that experience can be most helpful when managers work with more fungible resources, which can be used in a variety of different ways but can actually hurt when they work with resources that are more constrained in how they can be deployed. Under ideal circumstances, we find that experienced producers can generate nearly 40 percent more revenue with the right mix of resources. Copyright © 2015 John Wiley & Sons, Ltd.     

The pricing of deposit insurance considering bankruptcy costs and closure policies

The paper aims to study the pricing issue of deposit insurance with explicit consideration of bankruptcy costs and closure policies. Full coverage from deposit insurance is imposed by many regulators to stabilize the banking system in the current financial crisis, despite of the potential moral hazard problems. We argue that bankruptcy cost is an important factor in pricing deposit insurance, especially when the insured institution is insolvent. Applying the isomorphic relationship between deposit insurance and put option, we first derive a closed-form solution for the pricing model with bankruptcy costs and closure policies. Then, we modify the barrier option approach to price the deposit insurance in which the bankruptcy cost is set as a function of asset return volatility and more realistic closure policies considering possible forbearance can be accounted for. The properties of the models are supported by numerical simulations and are consistent with the risk-based pricing scheme.