Browsing by Author "Acar, Mehmet Fatih"

Now showing 1 - 2 of 2
  • Thumbnail Image
    ItemOpen Access
    Comparison of efficiencies in protectionist and liberal cabotage policies
    (Taylor & Francis, 2025-12-31) Karagöz, Deniz; Acar, Mehmet Fatih; Aktas, Emel; Aba, Anil
    This paper focuses on cabotage, which is a long-standing regulation that restricts coastal trade to domestic ships. As globalisation has grown, global trade organisations have pushed for the removal of these barriers to promote a competitive market environment. In this research, Data Envelopment Analysis (DEA) is used to evaluate and compare the efficiencies of countries which have protectionist and liberalised cabotage policies. To do this, maritime statistics in 2022 from the World Bank database are considered for 50 different countries. We find that both protectionist and liberal policies have advantages and disadvantages, but neither is inherently superior. In addition, cabotage policies must be structured according to each country’s conditions, and a delicate balance must be established between these policies, considering the dynamics of the global economy. This paper has also considered advantages and disadvantages by comparing countries that have different policies on cabotage, such as the UK and Türkiye, to show how cabotage regulations generate different perspectives created by their respective maritime pasts and geopolitics. In terms of an effective and competitive maritime industry, the study is one of the unique types of research that underlines the need for a cabotage strategy balanced between the liberalised and protectionist components.
  • Thumbnail Image
    ItemOpen Access
    Does sustainability pay? Evidence from the food sector
    (Taylor and Francis, 2019-04-13) Acar, Mehmet Fatih; Aktas, Emel; Agan, Yavuz; Bourlakis, Michael
    This research investigates sustainability concepts, linking them with social, environmental, and operational activities in the food supply chain. Building on the literature treating social sustainability as an antecedent of environmental sustainability, we present the effects of environmental sustainability on operational performance using constructs that reflect flexibility, quality, and responsiveness. For this purpose, manufacturing companies in the Turkish food industry are surveyed and 101 responses are collected. A partial least squares structural equation model (PLS-SEM) is constructed to test the reliability and the validity of the measurement model and the structural model. The results show that social sustainability is positively associated with environmental sustainability. Moreover, environmental sustainability has a positive influence on operational performance measures: flexibility, quality, and responsiveness with effect sizes that range from medium to large. Organizations in the food supply chain should consider not only the economic, but also the social and the environmental aspects of sustainability. To do this, governments could inform manufacturers in the food sector about the importance of sustainability and encourage them with different incentives towards more sustainable operational practices. This work establishes that investing in social and environmental sustainability returns increased operational performance. The limitation of the research is the size of the sample. In the future, the questionnaire can be used to compare results from other countries and other sectors.