Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
Permanent URI for this collectionhttps://hdl.handle.net/11147/7148
Browse
10 results
Search Results
Now showing 1 - 10 of 10
Conference Object Citation - Scopus: 2Lighting Quality and Work Performance Based on Glazing Types and Dynamic Led Lighting(IEEE, 2022) Köse, Fatma Büşra; Tayfur, Gökmen; Duran, Hasan Engin; Kazanasmaz, Zehra TuğçeThe combination of daylight characteristics and LED lighting quantities determines offices' visual environment. Lighting conditions can influence office workers' health and work performance. This study is an experimental one containing lighting measurements in two offices, subjective performance tests, and questionnaires to find out how work performance, lighting preferences, and satisfaction with lighting quality modify in terms of various glass types and dynamic LED lighting quantities. Glass types have strong impacts on contrast tests on paper and luminance which are corresponding to work performance. Regarding lighting quality, it strongly relates to the homogeneity of light, the impression of artificial light and the perception of objects' textures and color, contrast balance between paper and the surrounding. When the glass was modified in offices, we observed that participants preferred to change the CCT setting of LED by remote control, and in relation to that the eye-level illuminance and SPDs showed significant changes. So, the findings depicted the importance of the choice of glass types concerning LED lighting settings in terms of the above variables.Article Citation - Scopus: 9Asymmetries Across Regional Housing Markets in Turkey(Elsevier, 2020) Duran, Hasan Engin; Özdoğan, HilalIn the literature on real estate prices, two main groups of determinants are primarily considered; speculative and fundamental variables. Empirical literature in the areas has, however, several shortcomings. First, although existing studies have analysed the role played by speculative factors, none of the studies, have measured precisely the relative importance of speculative and fundamental variables. We aim at doing this. Moreover, the literature has measured the speculation only by analysing backward-looking behavior. We improve this analysis by considering also forward-looking expectations. Second, in terms of cross-regional determinants, the literature has largely considered economic and demographic variables whereas geographical and cultural variables have been ignored. We intend to incorporate them. Hence, aim of this paper is to understand the dynamics behind the housing prices in 26 Turkish regions between 2010:1–2016:9. We employ range of econometric methods such as Vector-Autoregressions, Unit Root Analysis, Cholesky Forecast Error Variance Decompositions, Impulse-Response Functions, Panel Regressions, Lagrange Multiplier Spatial Dependence Tests and Granger Causality Tests. As an outcome, three results emerge. First, housing price appreciations are so heterogeneous across regions. Second, role of speculative behaviour is quite significant. Third, regions which have high urbanization, population, crime rate, trade openness, seaside and cultural density experience faster housing appreciations. © 2020 Elsevier B.V.Article Citation - Scopus: 3Regional Inequality and International Trade in Turkey: a Dynamic Spatial Panel Approach(İstanbul Teknik Üniversitesi, 2017) Duran, Hasan Engin; Erdem, UmutAim of the present article1 is to investigate the impact of trade liberalization on the evolution of regional income inequalities in Turkey between 2004-2011. Despite the large body of literature on this subject, there exists several directions which needs to be further explored. i. so far in the literature, the concept of trade openness is too broadly defined. However, it is not only ‘trade’ per se that can affect the regional economies but the composition of trade is also of great importance (Rodriquez-Pose and Gill, 2006). Indeed, it can be partitioned into two components, such as exports and imports. We analyze separately the impact of each component on the evolution of regional inequalities. ii. in most of the empirical studies dealing with this issue, neighboring regions are assumed to have no spatial economic interconnection between each other. We, therefore, incorporate spatial spillovers of trade and growth into our analysis. Our results are summarized in two groups: First, regional inequalities in Turkey are quite sizable but tend to decline over the period of analyses. Second, initially poorer regions that experience an export-based liberalization tend to grow faster than richer ones. Imports, on the other hand, have an opposite effect. © 2017, Istanbul Teknik Universitesi, Faculty of Architecture. All rights reserved.Article Citation - Scopus: 3Regional Unemployment Dynamics in Turkey(Hellenic Association of Regional Scientists, 2019) Duran, Hasan EnginAim of the study is to investigate region specific causes of unemployment for Turkish 26 Nuts-2 regions between 2004-2017. We aim at contributing to the literature by analyzing (i) whether regional unemployment and sub-groups (with respect to gender, age, education) is driven by excessive labor supply or shortage of labor demand, (ii) which sub-groups have higher unemployment in regions. In terms of methodology, we employ descriptive and exploratory analyses, spatial tests and panel regressions. Our findings indicate three main results: First, there is a sizable difference in unemployment rates across regions and the dispersion is getting stronger over time. Second, there are extremely low and high unemployment rates in various sub-groups and regions. Third, changes in unemployment is mostly driven by changes in labor supply rather than demand. Among the 208 cases (26 regions x 8 sub-groups), in 154 cases, the major driver of unemployment is the excessive labor supply. © 2019 Hellenic Association of Regional Scientists. All rights reserved.Article Citation - Scopus: 10Asymmetries in Regional Development: Does Tfp or Capital Accumulation Matter for Spatial Inequalities?(Elsevier Ltd., 2019) Duran, Hasan EnginIn the literature on regional inequalities, commonly adopted Neo-Classical theoretical framework (Y=AK ? (hL) 1?? ) implies that disparities may arise for two reasons, either due to differences in factor endowments or TFP differentials. In the current study, we address the following rarely examined questions: i. Do regional income inequalities arise due to TFP or factor endowment disparities across regions? ii. What's their relative contribution to the level of and change in regional inequality? Our dataset covers the period 2004–2014 and 81 Turkish provinces. We use mathematical decompositions, Panel unit root, panel VAR and generalized impulse-response analyses. Results are summarized in two groups. First, the main contributor to income inequality is the disparity in regional factor endowments, whereas TFP differentials are relatively less influential. Second, the main source of decline in disparities seems to be the narrowing of TFP differences. © 2019 Elsevier B.V.Article Citation - Scopus: 3Structural Change and Output Volatility Reduction in Oecd Countries: Evidence of the Second Great Moderation(Springer Verlag, 2019) Duran, Hasan EnginIn this article, we provide new, novel evidence for a more recent structural break (in 2010) indicating a greater moderation of output volatility compared to the well-known break during the mid-1980s. The period of analysis runs from 1962Q2 to 2018Q3. It covers 26 OECD countries. In terms of methodology, it has mainly been used as the measures of conditional and unconditional volatility and procedures of structural break detection (Inclan–Tiao test and autoregressive conditional heteroscedasticity model). As a result, it has been found that output greatly stabilized following the structural break at 2010Q1 in the post-era of 2008/09 global financial crisis. Moreover, output stabilization is robustly evident for 24 (out of 26) OECD countries. From a political standpoint, it is implied that the Keynesian view may be influential in this moderation. Government expenditures and fiscal programs, regulations of financial markets against the sub-prime lending and limitations to trade of mortgage-backed securities might have been the main driver of stability. Rapid improvement of digitalization and technical productivity may be regarded as another relevant reason that might have contributed to the stabilization process. © 2019, The Author(s).Article Citation - Scopus: 2Exchange Rate Movements and Its Local Effects: Turkey Case(Econjournals, 2016) Duran, Hasan EnginAim of the current study is to investigate the impact of exchange rate movements on regional growth and inequalities across 26 NUTS-2 level regions in Turkey over a period 2004-2011. In terms of methodology, spatial-panel methods such as fixed and random effect estimators alligned with spatial autoregressive and error models were adopted. As an outcome, it has been shown that depreciation of Turkish lira creates an increasing effect on aggregate growth while its impact on regions are quite mixed. The industrialized Western regions are worsely affected. In these regions, depreciations create an increase in the cost items of companies, discouraging the production and output growth. Controversially, relatively less developed regions in Eastern parts are positively affected from depreciations, probably due to their improved export performances, following a depreciation, driven by a decrease in exported-good prices and increased competitiveness in foreign markets. This leads consequently to an improvement of convergence process.Article Citation - Scopus: 16Trade Openness, Urban Concentration and City-Size Growth in Turkey(Hellenic Association of Regional Scientists, 2015) Duran, Hasan Engin; Özkan, Sevim PelinAim of the present study is to investigate two important issues on urban concentration in Turkey. First, we investigate whether population tend to have an uneven distribution across cities between 1965-2012, second, we analyze the determinants of city-size growth by relating it to the process of trade liberalization and to a range of other socio-economic and geographical factors. In terms of methodology, we employ various cross sectional and spatial econometric tools to implement our analysis. Our results indicate three major conclusions: First, urban concentration tends to increase recently, leading to an unevenly growing cities and creating urban giants (i.e. Istanbul). Second, trade liberalization is shown to intensify this process since metropolitan areas, which are more open to trade, tend to grow faster than others. Third, specialization of cities in industrial activities (i.e. manufacturing) and economies of agglomeration are likely to reinforce the spatial concentration of population around larger cities.Article Citation - Scopus: 6Regional Effects of Monetary Policy: Turkey Case(Euro-American Association of Economic Development Studies, 2014) Duran, Hasan Engin; Erdem, UmutMonetary policy is primarily designed for national purposes, say price stability. However, its impact may vary significantly across regions. Why some regions respond more strongly to monetary policy is a challenging topic both theoretically and empirically. Indeed, three main hypothesis on this issue have been put forward: (i) regions with high share of manufacturing, (ii) regions that include higher proportion of small-scale firms and banks, (iii) regions which are more open to trade are likely to respond more strongly to changes in monetary policy. Although these hypotheses have been thoroughly and heatedly discussed by a strand of scholars, far little attention has been paid to the role of geographical factors and spatial spillovers. In fact, we precisely address this issue. Aim of the present paper is to examine the validity of three hypotheses and, additionally, the role of spatial spillovers in regional monetary transmission mechanism in Turkey. Our analyses indicate three major results: First, provinces respond quite heterogeneously to unexpected changes in monetary policy. Second, spatial spillovers and geographical proximity clearly matter in monetary transmission such that neighboring regions are likely to exhibit similar reactions to monetary policy. Third, among the hypothesis above bank size and trade openness are found to be significant.Article Citation - Scopus: 13Convergence of Regional Economic Cycles in Turkey(John Wiley and Sons Inc., 2013) Duran, Hasan EnginDissimilar economic fluctuations and asymmetric shocks across the regions of a country might create severe policy distortions that, under these circumstances, aggregate policy interventions (such as taxation and interest rates), are likely to be sub-optimal for at least a fraction of the regions. For instance, monetary policy can hardly satisfy the needs of all regions when some of the regions are experiencing a boom while others are in a recession phase. For these reasons, similarity of regional business cycles and their convergence are highly desirable from a policy viewpoint. The aim of this paper is, therefore, to provide empirical evidence and policy implications in that context. In particular, I analyze business cycle correlations across Turkish provinces and the tendency of these cycles to converge over the period of analysis between 1975-2000 and 2004-2008 (for Nomenclature of Territorial Units for Statistics [NUTS]-2 regions). I find that regional business cycle asymmetries have tended to decrease in recent decades. This result, although it seems to provide evidence in favor of rising correlations, shows that the convergence process is rather slow and there still exist asymmetries across the regional business cycles.