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The research on leaching behaviors of heavy metals in municipal solid waste incineration (MSWI) fly ash is of great significance. Because of the limitations like experimental condition, experiment data volume of heavy metals is difficult to achieve the prediction of requirements. In order to solve the problem of uncertainty and fuzziness caused by small sample, a new method based on fuzzy theory is proposed in this paper. By comparing fitting results from measured data and Visual MINTEQ simulation results, the method in this paper is considered to be more reliable and has a better interpretation for the leaching behaviors of heavy metals. The simulation results show the feasibility and superiority of the proposed method.

Taking tournament and agency theories as theoretical bases, this study aims to examine whether and when industry tournament incentives affect corporate social irresponsibility (CSiR).

This study focuses on publicly listed companies in China from 2003 to 2018, with a total of 26,638 observations across 3,013 firms. Based on this dataset, the study employs a high-dimensional fixed effects model to empirically investigate the impact of industry tournament incentives on CSiR. Additionally, it explores the moderating effects of founder chief executive officers, multiple large shareholders and state-owned enterprises on this relationship.

This study demonstrates that industry tournament incentives have a significant positive impact on CSiR. Additionally, the findings reveal that founder-chief executive officers and multiple large shareholders weaken the above relationships, whereas state-owned enterprises have no moderating effect on the above relationships.

By analyzing and testing the relationship between industry tournament incentives and CSiR for the first time, this study contributes to the literature on industry tournament incentives, the CSiR literature and tournament theory.

Whether and when the innovation aspiration shortfall (e.g. innovation performance lower than aspirations) will affect emerging economy firms (EEFs)' international expansion remains an important unanswered theoretical and practical question.

Based on performance feedback theory, this study explores the impact of innovation aspiration shortfall on EEFs' international expansion and the moderating role of CEO origin.

This study finds that innovation aspiration shortfall has a positive impact on EEFs' international expansion. This study also uncovers that EEFs are less likely to implement international expansion in response to innovation aspiration shortfall when the CEO is a founder than when the CEO is a non-founder, and EEFs are more likely to implement international expansion in response to innovation aspiration shortfall when the CEO is an outsider-CEO than when the CEO is an insider-CEO.

This study proposes that the interaction between innovation aspiration shortfall and CEO origin can be a useful predictor of EEFs' international expansion.

Many studies have examined the antecedents of firms' strategic change on a micro and meso level, but few studies have explored it from the macrolevel (e.g. economic policy uncertainty) perspective. This research draws attention to the impact of economic policy uncertainty on firms' strategic change.

This research empirically tests hypotheses based on a sample of listed firms in China during the period between 2010 and 2017.

Based on real options theory, the authors theorize and find that economic policy uncertainty will negatively affect firms' strategic change through the mediating effect of CEO turnover. Moreover, organizational inertia will strengthen the negative impact of economic policy uncertainty on CEO turnover and will weaken the positive impact of CEO turnover on firms' strategic change.

First, this research contributes to the strategic change literature by demonstrating the important impact of economic policy uncertainty on firms' strategic change. Second, this research expands the literature on the economic consequences of economic policy uncertainty. Third, this research clarifies the path and boundary conditions of economic policy uncertainty affecting strategic change by introducing the mediating effects of CEO turnover and the moderating effects of organizational inertia.

This study aims to re-examine the impact of economic policy uncertainty (EPU) on firm innovation. Studies on how EPU affects firm innovation have been inconclusive. The authors clarified the curvilinear relationship between EPU and firm innovation and examined the moderating effects of managerial pay gaps, specifically vertical pay disparity and horizontal pay dispersion.

This study’s analyses used data collected from Chinese listed companies from 2007 to 2019.

The authors found an inverted U-shaped relationship between EPU and firm innovation. Furthermore, vertical pay disparity strengthens the curvilinear relationship, while horizontal pay dispersion weakens it.

First, politicians should avoid adjusting economic policies too frequently because the high EPU levels created by frequent adjustments can inhibit business innovation. Second, firms should be aware that EPU creates opportunities for leapfrogging. In particular, firms can incentivize executives to take advantage of the valuable growth opportunities presented by EPU by widening vertical pay disparities and avoiding excessive horizontal pay dispersion.

First, the authors analyze not only the positive effects of lower EPU on firm innovation but also the negative impacts of higher EPU to examine EPU’s “double-edged sword” effect on firm innovation. Second, the investigation of vertical pay disparity and horizontal pay dispersion as moderating variables sheds new light on the equivocal research findings regarding the EPU–firm innovation relationship and clarifies the boundary conditions of the double-edged sword effect of EPU on firm innovation.

The authors aim to discuss the impact of research and development (R&D) internationalization on emerging market enterprises' (EMNEs') innovation efficiency, as well as the moderating effects of top management team (TMT) human capital.

The authors empirically tested the hypotheses based on Chinese listed manufacturing company data from 2008 to 2017.

R&D internationalization helps to increase EMNEs' innovation efficiency. Incorporating TMT human capital into this framework, the authors found that international experience, education level and technical background would all strengthen the above relationship.

First, the authors contribute to the R&D internationalization literature by providing the first empirical evidence that R&D internationalization will influence EMNEs' innovation efficiency. Second, this study enriches the research results on the driving factors of enterprise innovation efficiency and expands the related research results on the relationship between R&D internationalization and production efficiency. Third, the research highlights the prominent position of TMT human capital in the relationship between R&D internationalization and EMNEs' innovation efficiency, which strengthens the contextual characteristics of the “R&D internationalization-innovation performance” framework.

In recent years, the phenomena of “accelerating” and “jumping” during the international expansion of Chinese enterprises have attracted a lot of attention from scholars. However, while a CEO’s career horizon can significantly affect his or her enterprise’s strategic decision-making, few studies have explored the role of CEO career horizon in terms of “accelerating” and “jumping” internationalization.

Based on a sample of China’s A-share listed manufacturing companies from 2008 to 2017, this study explores the impact of CEO career horizon on the internationalization pace and international rhythm of enterprises.

First, the shorter the CEO’s career horizon, the more likely the CEO can avoid risky strategic decisions, which ultimately causes a negative relationship between CEO career horizon and the internationalization pace and rhythm of the enterprise. Second, for larger and older boards of directors, there is a more negative impact of the CEO’s short-term career horizon on the internationalization pace and internationalization rhythm of the company. However, given a larger proportion of female directors and non-executive directors, the CEO’s short-term career horizon has a weaker negative impact on international pace and the rhythm of internationalization.

First, based on upper echelon theory, this study interprets the influence of CEO career horizon on the time dimension of corporate internationalization (including internationalization pace and international rhythm), deepening the theory’s explanatory power. Second, by clarifying the important predictive effect of CEO career horizon on internationalization pace and international rhythm, this research enriches extant research on both variables’ antecedents, as well as that on the influence of CEO career horizon. Finally, by introducing the regulatory role of the board’s supervisory ability, this study clarifies the boundary conditions for the influence of the CEO’s career horizon on international pace and rhythm, and it expands the literature on how CEOs and boards of directors can influence corporate strategic decisions during the internationalization process.

Family planning (FP) services through the lens of human rights are not well known in Nepal. This study aims to assess Family Planning 2020: Rights and Empowerment Principles for Family Planning and identify factors affecting contraceptive use among HIV-infected women living in rural Far Western Nepal.

This study conducted a cross-sectional survey using self-designed proforma. To assess the association between contraceptive use and independent variables, this study calculated adjusted odd ratio (AOR) with 95% confidence interval (CI) using statistical package for social sciences (SPSS) V.20.

Only 37.8% of participants had access to full range of contraceptive methods, and only 57.5% of participants received proper counseling. Agency/autonomy, transparency/accountability and voice/participation were practiced by 43.7%, 23.4% and 19.7% of participants, respectively. Husband’s support (AOR = 4.263; 95% CI: 1.640–11.086), availability of FP services in their locality (AOR = 2.497; 95% CI: 1.311–4.754), employment (AOR = 3.499; 95% CI: 1.186–10.328) and postpartum period (AOR = 0.103; 95% CI: 0.023–0.475) were significantly associated with contraceptive use.

Health-care providers’ and program managers’ perspectives were not examined.

Findings of this study will be useful for making strategic plan on human rights-based approach to FP.

Expanding access to contraceptive information and services and strengthening autonomy, accountability and participation are key to human rights-based approach to FP.

This study identified that inadequate counselling, nonavailability of full range of contraceptive methods, low level of autonomy, accountability and participation were key bottlenecks in fulfilling human rights-based approach to FP.

This study aims to examine whether exploitative and exploratory overseas R&D have independent and significant effects on emerging economy multinational enterprises' (EMNEs’) innovation performance and whether top management team (TMT) nationality diversity and openness have a moderating effect on these relationships.

This study analyzes data collected from Chinese-listed manufacturing enterprises for 2007 to 2018.

Empirical results show that both exploitative and exploratory overseas R&D can help improve EMNEs' innovation performance. The authors further find that TMT nationality diversity and TMT openness strengthen the aforementioned relationships.

This study presents the first empirical evidence showing whether and when exploitative and exploratory overseas R&D have independent and heterogeneous effects on EMNEs' innovation performance.