Evaluation of 4PL operating models: A decision making approach based on 2-additive Choquet integral

By being a supply chain integrator who can assemble and manage the resources, capabilities, and technology of its own organization with those of complementary service providers, fourth party logistics (4PL) providers deliver comprehensive supply chain solutions and form an important option for business outsourcing. The adequate design of the partnership between companies in this type of outsourcing activities is essential. In order to support the effective usage of 4PL services, this paper proposes an analytical multiple criteria decision making approach to evaluate 4PL operating models. While decision criteria and their hierarchy were identified, it is observed that there exist interactions, e.g. simultaneous satisfaction of two or criteria is sometimes required. This situation can not be handled with traditional multi-criteria decision making methods which assume criteria independence. 2-additive Choquet integral is appropriate to model criteria interactions by pairs and is used in this study. The proposed framework is applied for a logistics company willing to expand its operations. Finally, an application is provided to demonstrate the potential of the methodology for 4PL operating model selection.     

The relationship between Co2 emissions,energy consumption,economic growth and FDI: the case of Turkey

This study investigates the relevance of the environmental Kuznets curve (EKC) hypothesis in Turkey for the period 1974–2010 using carbon dioxide (CO₂) emissions, energy consumption, economic growth, and foreign direct investment (FDI) variables. The long-run equilibrium relationship among CO₂ emissions, energy consumption, economic growth, and FDI is revealed using the bounds test. The error correction model under autoregressive-distributed lag mechanism suggests that CO₂ emissions converge to their long-run equilibrium level by a 49.2% speed of adjustment every year by the contribution of energy consumption, economic growth, and FDI. The Toda–Yamamoto (1995 Toda, H.Y., and T. Yamamoto. 1995. “Statistical Inference in Vector Autoregressions with Possibly Integrated Processes.” Journal of Econometrics 66 (1): 225–250.[Crossref], [Web of Science ®] , [Google Scholar]) causality test results imply that carbon emissions and FDI, energy consumption, and CO₂ emissions have bidirectional causal relationships. On the other hand, there are unidirectional causal relationships running from economic growth and energy consumption to FDI and from economic growth to energy consumption. Our findings provide evidence of the validity of the pollution haven hypothesis, in addition to the scale effect, and the EKC in the case of Turkey.     

The Economic Impacts of Turkish Accession to the European Union

Half a century has passed and Turkey is no further toward achieving EU membership. Under the mandate of the Barcelona Declaration, EU–Turkish industrial tariffs will be abolished, whilst agro‐food protectionism remains largely intact. Consequently, the direct impacts from a hypothetical EU accession scenario will be concentrated in agro‐food sectors, whilst their share of economic output in Turkey implies ‘secondary’ macro impacts. To this end, a computable general equilibrium (CGE) framework is employed to quantitatively reassess full Turkish accession. Unlike previous CGE studies, agriculture, fishing and food sectors are disaggregated, whilst significant advancements to the ‘standard’ model code are incorporated to capture the vagaries of agricultural factor, input and product markets. In addition, a realistic ‘baseline’ scenario is constructed including ‘up to date’ trade and domestic agricultural policy reforms prior to Turkish entry to the EU. The results show that trade‐led gains in Turkey are moderated due to tariff liberalisation prior to EU entry, whilst Turkey receives significant budgetary transfers from the CAP budget, which are ‘mirrored’ as EU‐27 costs. With additional migration effects, Turkish (EU‐27) production possibilities fall (rise), whilst real income per capita rises (falls).     

Entrepreneurs in Turkey: A Factor Analysis of Motivations, Success Factors, and Problems

One hundred and thirty-nine entrepreneurs in Ankara, Turkey were surveyed to determine their motivations for business ownership, the factors contributing to their success, and their problems. Based on survey responses, the primary reasons for starting a business are to increase income, to obtain job security, and to secure independence. According to the factor analysis, small and medium-sized enterprises owners are driven more by income rewards than intrinsic rewards. The most important business success variables are the entrepreneurs' reputation for honesty and friendliness. Social skills and good customer service were also cited as critical success factors. The most serious problem faced by entrepreneurs in Turkey is the complex and confusing tax structure. Other important problems include unreliable employees, the inability to maintain good records, and a weak economy.     

Efficiency in accounting education: evidence from Turkish Universities

It is important to see efficiency of accounting education in order to fully understand the operational environment of companies. In this study, the 45 public universities in Turkey was investigated by using Data Envelopment Analysis [DEA]. In order, some definitions for the outputs and inputs are required for the model. The criteria developed by American Assembly of Collegiate Schools of Business (AACSB) is used as definitions for inputs, is used and the result of the Selection Exam for Public Personnel [SEPP] is used to measure efficiency in accounting education. According to our results, Turkish universities are successful in producing the most appropriate output. They are usually using their input components in a favorable way. According to our model accounting education delivered in the undergraduate programs of the higher education system in Turkey is generally effective. But universities are using resources excessively to get the output. On the departmental basis, Turkish universities are technically effective to a great extent. It is determined that the departments of labor economics, industrial relations and partially public finance are more effective departments. According to resource usage, while the most effective departments are departments of public finance, departments of business administration are the most ineffective ones.     

The heterogeneous impact of taxation on economic development: New insights from a panel cointegration approach

In this paper, we study the role of taxation on long-run income performance. In the theoretical part of the study, we develop a stylized model based on Barro (1990), in which income taxation has two contradictory roles in the standard Solow (1956) setup: on the one hand, taxation appropriates resources that would otherwise be used for physical capital accumulation, and on the other, it is the source of government spending, which is used to support private production. In the empirical part of the study, the impact of consumption tax, personal income tax, corporate profit tax and property tax on income is estimated using the common correlated effects (CCE) panel cointegration approach, which allows for cross-sectional dependencies and provides both panel- and country-specific results. The panel findings for 30 OECD countries for the period of 1995–2016 indicate that only consumption tax has a statistically significant negative effect on long-run income. However, because the type and sign of the tax coefficients are heterogeneous for the country-specific results, we conclude that taxation has heterogeneous effects on income.     

The mediating role of positive affectivity on testing the relationship of engagement to academic achievement: an empirical investigation of tourism students

Undergraduate tourism and hospitality students participated in the current study to investigate the effect of student engagement and positive affectivity on academic achievement. Additionally, positive affectivity is treated as a mediating variable between engagement and achievement. The study sample was amassed at a university in Northern Cyprus. Results of the hierarchical regression analyses revealed that student engagement and positive affectivity had a significantly positive effect on academic achievement. The results also depicted a full mediation of positive affectivity between engagement and achievement. A variance inflation factor test did not reveal inflated results. In addition, Harmans’ single factor test revealed that the common method bias issue is well below the cut-off point. Limitations and implications are also discussed.     

Affectivity,conflicts in the work–family interface,and hotel employee outcomes

Based on data obtained from frontline hotel employees in Turkey, the current study examined the effects of negative affectivity (NA) and positive affectivity (PA) on work–family conflict and family–work conflict and the effects of both directions of conflict on marital satisfaction and turnover intentions. This study also tested the relationship of marital satisfaction with frontline employees’ turnover intentions. The results demonstrated that PA ameliorates both work–family conflict and family–work conflict, while NA exacerbates only work–family conflict. The findings of the study indicated that family–work conflict has a detrimental impact on marital satisfaction. However, this study provided no empirical support for the relationship between work–family conflict and marital satisfaction. Consistent with the study predictions, frontline employees’ perceptions of work–family conflict and family–work conflict increased their turnover intentions. There was also empirical support for the hypothesis that marital satisfaction has a significant negative impact on frontline employees’ turnover intentions. Implications of the empirical results and limitations of the study are discussed.