An interactive fuzzy satisficing method for multiobjective stochastic linear programming problems using chance constrained conditions

Two major approaches to deal with randomness or ambiguity involved in mathematical programming problems have been developed. They are stochastic programming approaches and fuzzy programming approaches. In this paper, we focus on multiobjective linear programming problems with random variable coefficients in objective functions and/or constraints. Using chance constrained programming techniques, the stochastic programming problems are transformed into deterministic ones. As a fusion of stochastic approaches and fuzzy ones, after determining the fuzzy goals of the decision maker, interactive fuzzy satisficing methods to derive a satisficing solution for the decision maker by updating the reference membership levels is presented. Copyright © 2003 John Wiley & Sons, Ltd.     

Attribute‐based differentiation of alternatives

An intermediate step is introduced to the dialogue decision process for decision analysis. Alternatives are refined after they have been generated within a strategy table but before they are subject to more detailed evaluation. Two or more judges create a subjective mapping from alternatives to attributes that will later be mapped to criteria. In strategy tables, each of the alternative strategies consists of a coherent set of choices made across several decisions that are to be coordinated. These strategic alternatives are modified so as to increase their differentiation in the attribute space, rather than in the decision space alone. When criteria weights are unknown, the best alternative from the modified set may be superior to the best alternative from the original set. Furthermore, analysis of the resulting alternatives may yield a better mapping of the value response surface for the action space, in the sense that this mapping leads to eventual construction of a higher value alternative. Results are reported for a consulting engagement incorporating the proposed step. Copyright © 2003 John Wiley & Sons, Ltd.     

绩效薪酬对雇员创造力的影响:人-工作匹配和创造力自我效能的作用

采用296对上下级匹配数据考察了绩效薪酬对创造力的影响以及人-工作匹配的调节效应和创造力自我效能的中介效应。研究结果表明:绩效薪酬对创造力有倒U形影响;创造力自我效能部分中介了绩效薪酬对创造力的倒U形影响;人-工作匹配调节绩效薪酬与创造力的关系,人-工作匹配度越高,中等强度绩效薪酬的正面效应越强,高强度绩效薪酬的负面效应越弱;绩效薪酬与人-工作匹配的交互效应通过创造力自我效能的完全中介效应影响创造力。     

Tests of an indifference rule in variable‐delay and double‐reward choice procedures with humans

Four hundred and fifty participants were recruited from Amazon Mechanical Turk across 3 experiments to test the predictions of a hyperbolic discounting equation in accounting for human choices involving variable delays or multiple rewards (Mazur, 1984, 1986). In Experiment 1, participants made hypothetical choices between 2 monetary alternatives, 1 consisting of a fixed delay and another consisting of 2 delays of equal probability (i.e., a variable‐delay procedure). In Experiment 2, participants made hypothetical monetary choices between a single, immediate reward and 2 rewards, 1 immediate and 1 delayed (i.e., a double‐reward procedure). Experiment 3 also used a double‐reward procedure, but with 2 delayed rewards. Participants in all 3 experiments also completed a standard delay‐discounting task. Finally, 3 reward amounts were tested in each type of task ($100, $1000, and $5000). In the double‐reward conditions (Experiments 2 and 3), the results were in good qualitative and quantitative agreement with Mazur's model (1984, 1986). In contrast, when participants made choices involving variable delays (Experiment 1), there was relatively poor qualitative and quantitative agreement with this model. These results, along with our previous findings, suggest the structure of questions in hypothetical tasks with humans can be a strong determinant of the choice pattern.     

Effects of Creative Personality on EEG Alpha Oscillation: Based on the Social and General Creativity Comparative Study

The neural mechanism underlying creativity has been identified and confirmed by numerous studies. This current exploratory study compared the neural basis between social creativity and general creativity and explored the effect of creative personality on their neural basis by employing multiple regression analysis. The EEG activities of 34 participants were recorded during social or general creative tasks. The results indicated that a stronger alpha event‐related synchronization (ERS) was presented during the social creative task than during the general creative task. High creative personality individuals were found to exhibit higher event‐related desynchronization (ERD) only for the upper alpha band. Additionally, high creative personality individuals revealed no significant task differences regarding the alpha ERS. However, low creative personality individuals exhibited a stronger alpha ERS for social creative tasks than they did for general creative tasks. The current investigation could lead to new approaches for examining the brain correlates of creativity from different domains and their correlations with respect to creative personality.     

Taking Time to Incubate: The Moderating Role of ‘What You Do’ and ‘When You Do It’ on Creative Performance

We explore how the choices available to individuals planning multi‐task work can facilitate the incubation of ideas and enhance creative performance. Using opportunistic assimilation theory, we hypothesize that two considerations can determine the effectiveness of incubation and creative performance. First, we argue that having the discretion to switch tasks when needed, as well as the timing of this discretionary switch between tasks (i.e., earlier versus later in the work process on the main task) is important. Second, the scope of the intervening task (i.e., in the same knowledge domain as the main task versus in a different domain) can lead to more effective incubation and creativity. Results of a laboratory study indicate that participants who made a discretionary switch to an intervening task later in their work process on the main task benefited significantly more in terms of creative performance than those who chose to switch earlier in their work process or chose not to switch tasks. Additionally, participants who worked on an in‐domain intervening task exhibited significantly higher creativity on the main task than those who worked on an out‐of‐domain intervening task. Furthermore, focus of attention on the main task partially mediated these results.     

Conceptualizing Creativity: General and Cultural Biases in Gough's Creative Personality Scale

This study analyzes the validity of Gough's Creative Personality Scale (CPS) for the Adjective Check List (ACL) by using 1773 Swiss, South Korean, and Mainland Chinese students as a sample. Four sources of potential bias were identified in Gough's CPS, two of which are general and two cultural in nature. The two general biases were investigated by conducting correlation analyses and evaluating alternative scoring methods for the CPS. As a result of the first bias, checking a large number of adjectives was found to be more important for achieving a high score than checking the relevant ones. Due to the second bias, the CPS score mostly depends on the number of positive adjectives checked while negative items have little impact. The two cultural biases were analyzed using an implicit version of the CPS (iCPS) and factor analysis. The latter revealed three different clusters of creativity type: exploratory‐type, socially responsible‐type, and intellectual‐type creativity. Based on cultural background, they are all weighted differently, causing a potential experiential bias in the CPS. Findings indicate that in South Korea and Mainland China socially responsible‐type creativity dominates whereas in Switzerland exploratory‐type creativity prevails. Findings from the iCPS suggest the second cultural bias, the socially desirable responding bias arising from differences in responding styles among the three cultures.     

A Self‐Report Measure of Productive Thinking in Solving Insight Problems

There is broad agreement among executives on the importance of innovation and creativity in organizations. The paper aimed to provide information on the effectiveness of a new cognitive style inventory, the Productive‐Reproductive Thinking Inventory (P‐R), in identifying people with creative problem‐solving potential. Participants completed the P‐R Inventory, Kirton's Adaption‐Innovation Inventory (KAI), the Assimilator‐Explorer Inventory, self‐rating of insight problem‐solving, and a battery of insight problem‐solving tasks under controlled conditions. The P‐R scale was a significant predictor of problem‐solving performance and insight self‐ratings and correlated significantly with KAI and AE scores. In addition, the results supported distinguishing two types of reproductive thinking which are differentially associated with insight performance. The distinction was supported by confirmatory factor analysis and structural equation models. Using controlled conditions may limit the generality of the findings and further research should be carried out in applied settings. The P‐R inventory is short and easily administered and may provide HR professionals with a useful screening tool for assessing creative problem‐solving potential. The measure differs from the KAI in several ways that may offer advantages for creativity researchers in that it is non‐proprietary, based on well‐established psychological constructs, and is more particularly applicable to insight problem‐solving.     

Openness to Experience Enhances Creativity: The Mediating Role of Intrinsic Motivation and the Creative Process Engagement

Studies indicate that there is a positive relationship between openness to experience and creativity. However, relatively little attention has been given to the mechanism of this relationship. On the basis of previous findings, we hypothesized a conceptual model and tested the mediating role of intrinsic motivation and the creative process engagement in the relationship between openness to experience and creativity. One hundred and ninety‐eight undergraduates in Malaysia participated in the study and completed an online measure of openness to new experience, creativity, intrinsic motivation, and the creative process engagement. Consistent with the hypothesis, people who scored high on openness reported high intrinsic motivation. The high motivation enhanced engagement in creativity‐related activities, which in turn, improved self‐rated creativity. The findings not only shed light on mechanisms that underlie in the openness‐creativity linkage but they also highlight the importance of intrinsic motivation and creative process engagement in the linkage. Together, the study extends the effect of personality trait on creativity and offers a new direction for future studies.     

The Mediating Role of Creative Process Engagement in the Relationship between Shyness and Self‐Rated Creativity

Shyness has been found to have a negative impact on creativity. However, little attention has been given to the underlying process of the relationship between shyness and creativity. On the basis of literature, we hypothesize that shyness has an indirect impact on creativity through creative process engagement. Two studies were conducted on undergraduate students (Study 1) and working adults (Study 2) to test the hypothetical relationship. Analysis on participants self‐report showed that shyness was negatively associated with self‐reported creativity as well as creative process engagement. There was a positive relationship between creative process engagement and creativity. More importantly, mediation analysis supported that shyness was indirectly linked to creativity via creative process engagement. Specifically, shy people are found to be less involved in creativity‐relevant processes such as information searching and idea generation. The low level of creative process engagement, in turn, hinders their creativity. The findings not only lend support to the detrimental effect of shyness on creativity but also shed light on the underlying mechanism of the relationship.