Purpose -The purpose of this paper is to present a selection model that adopts several important criteria, enabling a durable goods franchiser to select franchisees that are most appropriate. Design/methodology/approach -Questionnaires based on selection criteria are identified from modified Delphi Technique and then sent to experts and decision makers. Major criteria weights are analyzed using the analytic hierarchy process and entropy. Final weights are then determined using the compromised weighting method.Findings -This study has demonstrated that the durable goods sector in Taiwan emphasizes the condition of a franchisee personal condition more than its store location, and our results further indicate that a franchiser should emphasize finance and business ability when selecting franchisees. Additionally, consumer purchasing power, individuals passing by and parking convenience are all important factors for selecting a franchisee. Originality/value -Analysis results indicate that the proposed selection model enables a franchiser to select franchisees more reasonably by allowing them to operate effectively.

PurposeThe purpose of this paper is to use data envelopment analysis (DEA) to evaluate the efficiency of the wafer fabrication industry in Taiwan.Design/methodology/approachThe input variables are total assets, operation costs, and operation expenditures, and the output variable is net sales. This study uses the Pearson correlation to indicate positively correlation between input and output variables, applies DEA to analyze the efficiency scores, and utilizes Mann‐Whitney U‐test to compare the efficiency score of stock exchange market group (SEM group) with that of over‐the‐counter market group (OTC group). Moreover, this paper explores the efficiency performance over different periods by use of the Malmquist productive Index (MPI).FindingsThis study indicates that Taiwan Semiconductor Manufacturing Corporation (TSMC) has the most relative efficiency in the wafer fabrication industry of Taiwan. In addition, this study finds out the average constant returns to scale (CRS) efficiency of the Taiwanese wafer fabrication industry from 1999 to 2003 is 84.98 per cent, and the average CRS efficiencies of all nine wafer fabrication companies are over 70 per cent. This study finds out that net sales and scale efficiency of SEM group are higher than those of OTC group. Moreover, this study shows that the main inefficient causes of four companies of SEM group except TSMC and Nanya are from the inefficiency of variable returns to scale efficiency, while the main inefficient causes of all companies of OTC group are from the inefficiency of scale efficiency. Finally, according the results of the MPI in this study, the wafer fabrication industry should introduce the new technology to improve its technology change effect.Originality/valueThis study provides a valuable reference for wafer fabrication companies not only in reviewing their efficiency, but also in enhancing their operational performance.

0D‐2D p–n type CsPbBr3/BiOCl heterojunction photocatalyst is successfully fabricated via the electrostatic self‐assembly process. On the basis of the photoluminescence and photocurrent density results, the CsPbBr3/BiOCl composite exhibits a higher charge separation rate than pure BiOCl and CsPbBr3. The degradation of Rhodamine B (RhB) result shows that the CsPbBr3/BiOCl composite obtains the highest degradation rate of close to 100% within 60 min, which is significantly higher than those of pure CsPbBr3 (84.21%) and BiOCl (73.57%) because the p–n type heterojunction photocatalyst can promote the separation of photogenerated charge carriers. The free radical capture experiment demonstrates that •O2− plays a major role in the photodegradation of RhB. This study may provide insights into designing advanced photocatalysts for the clean‐ups of environmental pollutants.