Purpose Firms are working in a complex environment in which the updated information increase the pace of precise decision making and reduce the risk of wrong decisions. Therefore, discovering firms’ performance is a major issue. The purpose of this paper is to evaluate the efficiency of Iranian plastic producing companies by using data envelopment analysis (DEA). It also discovers various drivers that significantly affect the efficiency of enterprises. Design/methodology/approach The authors studied a sample of 17 manufacturing firms to examine the relative efficiency of companies. They, then, evaluated the effects of efficiency drivers and used two methods for these purposes: DEA and bootstrapped Tobit regression model. Findings The study has shown that two manufacturing firms out of selected 17 are efficient under the Charnes, Cooper, and Rhodes model. Also, nine out of 17 plastic producing companies are productive under the Banker, Charnes, and Cooper model. The results of Tobit regression shows that only two efficiency drivers out of four have a significant positive influence on the efficiency of plastic producing firms. Research limitations/implications Considering one industry and country limits the generalizability of the results provided. Besides, data availability has limited the analysis in some parts, particularly in bootstrapped Tobit regression. Practical implications The authors listed this section into benchmarking and strategical management; more importantly, the suggestions for improving the chemical industry and its future evolution are presented. Originality/value The paper is classified into two issues: the efficiency of plastic producing firms in Iran and evaluating the reason for inefficiency, apart from internal managerial procedures.
PurposeThe purpose of this study is to investigate the effect of organizational goal ambiguity (OGA) on public service motivation (PSM) considering the mediating role of job satisfaction (JS), performance appraisal (PA) and perceived organizational fairness (POF) in the Iranian public sector. This research also seeks to answer this question: to what extent PSM confirmed in Western countries is generalizable to the Iranian public sector?Design/methodology/approachA survey of 779 employees working in 16 ministries of Iran was administered. Confirmatory factor analysis (CFA) and hierarchical regression were applied to test the model and the mediators.FindingsThe results indicate that OGA negatively affects PSM, and this relationship is mediated by JS, PA and POF. Furthermore, the research findings have varied across ministries, contract type, positions and gender. Most importantly, the generalizability of the PSM construct is limited in the public sector of Iran since two of four dimensions of PSM were confirmed, that is, an attraction to public service and self-sacrifice (compassion).Practical implicationsThis paper provides managers and decision makers with a clear understanding of the effects of context (including goal ambiguity, the importance of employee's attitudes and HR systems in shaping unique intrinsic motivation for public organizations) on employee's PSM. Also, these findings show how they can manage and motivate employees to engage in PSM. By clarifying organizational goals or making an association between job tasks and higher-level goals, practitioners can stimulate PSM at work.Originality/valueThis paper advances a new and further understanding of antecedent and mediators of PSM in Iran. Also, it provides an explanation of its generalizability and the role of organizational climate in fostering it.
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