DETERMINANTS OF A FIRM'S ISO 14001 CERTIFICATION: AN EMPIRICAL STUDY OF TAIWAN

Abstract.   Only rarely have empirical studies analysed the responses of Taiwanese manufacturing firms to ISO 14001, despite firm responses to environmental issues being an important aspect of environmental management. This study empirically examines the determinants of firms' environmental self-governance. Export oriented Taiwanese firms, which face environmental concerns from foreign consumers, are found to be more likely than domestic focused firms to adopt ISO 14001. This study also finds that several firm attributes are decisive for firm adoption of ISO 14001. However, this study does not find any significant impact of local governors' political party affiliation on firms' ISO 14001 certifications.     

Agility index in the supply chain

To achieve a competitive edge in the rapidly changing business environment, companies must align with suppliers and customers to streamline operations, as well as working together to achieve a level of agility beyond individual companies. Consequently, agile supply chains are the dominant competitive vehicles. Embracing agile supply chain requires asking some important questions, namely: what exactly is agility and how can it be measured? Moreover, how can agility be effectively achieved and enhanced? Due to the ambiguity of agility assessment, most measures are described subjectively using linguistic terms. Thus, this study develops a fuzzy agility index (FAI) based on agility providers using fuzzy logic. The FAI comprises attribute’ ratings and corresponding weights, and is aggregated by a fuzzy weighted average. To illustrate the efficacy of the method, this study also evaluates the supply chain agility of a Taiwanese company. This evaluation demonstrates that the method can provide analysts with more informative and reliable information for decision.     

Impact of price limits on Taiwan security returns

The paper investigates the effects of daily price limits imposed by the R.O.C. Government on shares listed on the Taiwan Stock Exchange. The study is performed on nineteen blue-chip stocks from six industries. For each sample stock, the daily returns (from 4 January 1986 to 24 October 1987) are divided into three groups: (A) first experimental, (B) second experimental and (C) control groups. Each sample point in groups A and B consists of one event day and the following six trading days. Event day is defined to be the day the stock price reaches the upper (lower) price limit. Group C comprises all other days, except ex-dividend days. Group C data are used in the market model to obtain the alpha and beta estimates for that stock. These estimates are then used to (CARs) embedded in data sets A and B. The preliminary results of this research suggest severe violation of the random walk hypothesis. Further, the impact of government imposed price limits on stocks varies across stocks. While several patterns of CARs of stock return are observed, the results suggest existence of potential profitable short-run investment strategies among several sample stocks in this study.We are most grateful to the National Science Council of Taiwan and National Chiao-Tung University for providing the data set, SPIT. This paper has benefitted from the discussion in the conference.     

Analyzing Ordinal Data for Group Representation

With n individuals ranking m objects, the exhaustive comparison approach, proposed in this paper, produces a list of order vectors sorted by the relative number of concordant pairs. The exhaustive comparison approach compares all possible order vectors instead of "an" optimal order vector to help the data analyst to consider "practical" solutions rather than a "desired" solution. An overall concordant order ratio is proposed to measure "how well" each order vector may represent the ranking structure of an ordinal data set. And the marginal concordant ratio evaluating the goodness of fit of each object in each order vector is also proposed in this paper. Comparisons among some popular ranking methods are discussed in this article. An empirical survey data regarding how travellers considered various factors for choosing travelling locations are used to illustrate the proposed method and calculations.     

The Role of Social Mechanisms in Promoting Supplier Flexibility

Purpose: This study explores a conceptual framework for social mechanisms (trust and shared vision) to induce supplier flexibility (i.e., volume, mix, new product, and delivery flexibility).

Design/methodology/approach: The current study is based on marketing research reviews of social mechanisms and supply chain flexibility literature. To explore these issues, the authors developed and tested hypotheses with data from 162 members of the SMIT (Supply Management Institute, Taiwan).

Findings: The results show that trust has a direct impact on supplier's volume flexibility and delivery flexibility. Furthermore, the findings indicate that a shared vision has direct impact on supplier's mix, new product, and delivery flexibility. Finally, shared vision plays a mediating role among trust and mix, new product, and delivery flexibility.

Research limitations/implications: This research considers buyer's perspective in examining social mechanisms that enhance supplier flexibility. A clear understanding of social mechanisms effects could evaluate competence trust and risk of respective flexibility that may affect social mechanism effectiveness.

Practical implications: This article contributes to management guidelines on how to align suppliers to respond quickly to customer demands.

Originality/value: The study provides novel insights into social mechanism impact on suppliers' respective flexibility.