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Publisher : Springer ✕Faculty / Institute : İktisadi ve İdari Bi ... ✕
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A Nonlinear Panel ARDL Analysis of Pollution Haven/Halo Hypothesis

Zamira ÖSKÖNBAYEVA

There is a growing popularity for the nonlinear econometric approaches, since linkages among variables are not always linear. Nonlinear approaches provide a broader range of knowledge compared to the linear model. This research aims to assess the impact of foreign direct investment on pollution. To capture the potential asymmetries resulting from rise and fall in the foreign direct investments, the nonlinear panel autoregressive distributed lag approach is employed. In the empirical analysis, annual data of selected 22 transition economies from 1995 to 2016 is utilized. The findings highlighte ...More

Chapter of Books 2022 İktisadi ve İdari Bilimler Fakültesi Advances in Econometrics, Operational Research, Data Science and Actuarial Studies 72 Views
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Analysis of Article Methodologies on Financial Statements’ Transparency Between the Years 2000 and 2016

Bilal SOLAK

Accounting scandals that took place in the last quarter of the twentieth century such as the one at ENRON and PARMALAT prove the importance of transparency and objectivity for the presentation of financial statements. Accounting researchers all over Turkey and other countries have started to publish more studies using different kinds of methodologies on providing transparency for the financial statements due to the scandals. Published work by accounting scientists is extraordinarily crucial both for accounting theory and shaping accounting applications. In this research, article methodologies ...More

Chapter of Books 2019 İktisadi ve İdari Bilimler Fakültesi Ethics and Sustainability in Accounting and Finance, Volume I1 23 Views
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The effects of the investment decisions of telecommunications firms on their financial performance during the COVID-19 pandemic

Gökhan ÖZER

In this paper we examine how the financial performance of telecommunications firms is affected by the COVID-19 pandemic, and investigate the role of capital expenditures in this relationship. The full sample consists of 383 unique telecommunications firms from 72 countries. Empirical models are estimated using ordinary least squares regression with the Driscoll–Kraay standard errors method. We find that the financial performance of telecommunications firms, on average, decreased slightly during the pandemic period. However, firms with higher capital expenditures have increased their financial ...More

Article 2023 İktisadi ve İdari Bilimler Fakültesi Empirical Economics66 ( 5 ) 30 Views
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Taguchi optimization of automotive radiator cooling with nanofluids

Kasım BAYNAL

Considering the influences of the heat transfer rate in automotive radiators on several aspects such as engine performance, fuel economy and available space for components, the present study numerically investigates the impacts of different nanofluids on the heat transfer and pressure drop in an automotive radiator. Four different parameters each having four levels are taken into consideration, which are nanoparticle volume fraction (phi 0.1, 0.3, 0.7, and 1), Reynolds number (Re 9350, 13,800, 18,500 and 23,000), type of base fluid (EG20, EG40, EG60, and water) and type of nanoparticle (Fe3O4, ...More

Article 2022 İktisadi ve İdari Bilimler Fakültesi The European Physical Journal Special Topics231 ( Special Issue: 13-14 ) 94 Views
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Volatility of the alternative energy input prices and spillover effects: a VAR [MA]-MGARCH in BEKK approach for the Turkish economy

Tezcan ABASIZ

The interaction among the energy unit prices, which are considered as the most effective factor on the realization of economic growth, and the distribution of this interaction throughout the manufacturing process have become popular subjects in research recently. Especially, the scarcity of energy resources and the problems encountered in their supply make it necessary to utilize alternative energy resources. Thus, the realization of production using different energy inputs simultaneously results in an interaction between the factors and the spillover effect. Thus, in the study, alternative ve ...More

Article 2019 İktisadi ve İdari Bilimler Fakültesi Environmental Science and Pollution Research26 ( 11 ) 113 Views
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Optimisation of elastomeric bearings' vulcanisation process using response surface methodology and desirability function approach

Kasım BAYNAL

In this study, response surface methodology and desirability function approach (DFA) were used to optimise the vulcanisation process of elastomeric bearings to obtain better quality products. For this purpose, compressive stiffness and vertical deflection under maximum load were determined as response variables with a target at 198 kN/mm and 3.46 mm, respectively, in accordance with customer's request. Time, temperature and pressure were considered as control variables of the process. Experimental combinations were determined using Box-Behnken design and two repetitions were made in each combi ...More

Article 2019 İktisadi ve İdari Bilimler Fakültesi Journal of Rubber Research22 ( 4 ) 33 Views
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The impact of infrastructure on trade in Central Asia

Burulça SULAYMANOVA

This paper aims to investigate the impact of infrastructure on trade in Central Asia based on the data of three countries: Kazakhstan, Kyrgyzstan, and Tajikistan. Empirical estimations are based on panel data for the period 2010-2018. Infrastructure is measured by quality and quantity indicators. Trade flows are measured by the export and import volumes of each of these countries with their main trade partner countries. The results show that both the quality and quantity of infrastructure in Central Asia have a positive impact on trade flows. However, the positive impact of infrastructure over ...More

Article 2021 İktisadi ve İdari Bilimler Fakültesi Asia Europe Journal19 ( SUPPL 1 ) 123 Views
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