İktisadi ve İdari Bilimler Fakültesi

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Analysis of distinct asymmetries in financial integration‐growth nexus for industrial, emerging and developing countries
(2020) Öcal, Nadir; Öcal, Nadir; 163521; İktisat
This paper examines the threshold conditions in financial integration and growth relationship for a large set of threshold variables and different income group of countries employing Panel Smooth Transition Regression Models. Except developing countries, our findings strongly indicate nonlinear dynamics and imply that the impact of financial integration on growth is asymmetric depending on a number of indicators such as countries' degree of institutional quality, financial sector development, trade openness, budget deficit, inflation volatility and the level of financial integration. Our results show that these threshold effects substantially differ for emerging and industrial countries. As far as whole set of countries is concerned, our findings imply that countries having developed financial systems, qualified institutions and stable macroeconomic environment benefit from financial integration. Moreover, threshold effects are stronger and different for emerging countries compared to the industrial countries. Unlike emerging economies, higher levels of financial integration and trade openness decrease benefits from financial openness for the industrial countries. Besides, high fiscal deficit has more pronounced negative effect on the growth of the industrialized countries compared to emerging economies and other indicators.
Benlik Saygısının Çatışma Yönetim Stilleri Üzerindeki Etkisi: Bir Üniversite Hastanesi Örneği
(2013) Tunç, Tülin; Kutanis, Rana; 138931
Bu araştırmanın ana amacı; benlik saygısının bütünleştirme, kaçınma, uyma, hükmetme ve uzlaşma olarak ifade edilen çatışma yönetim stillerinin her biri üzerindeki etkilerini ortaya koymaktır. Benlik saygısı ile her bir çatışma yönetim stili arasındaki ilişkileri ve katılımcıların bazı sosyodemografik özelliklerine göre çatışma yönetim stilleri arasındaki farklılıkları belirlemek de alt amaçlardır. Bir üniversite hastanesinde görev yapan 267 hekime, nicel yöntem bağlamında anket formu uygulanmıştır. Katılımın gönüllülük esasına göre belirlendiği araştırmada, geri dönen ve analize dahil edilen anket sayısı 183 olup, geri dönüş oranı % 68.54’tür. Katılımcıların anket formundaki ‘Rosenberg Benlik Saygısı Ölçeği (RSES)’ ve ‘Rahim Örgütsel Çatışma Envanteri-II (ROCI-II)’ni doldurmaları ile elde edilen nicel veriler analiz edilmiştir. Elde edilen bulgulara göre; cinsiyet, medeni durum, yaş, meslekte toplam çalışma süresi (kıdem) ve statü değişkenleri açısından, katılımcıların bazı çatışma yönetim stillerinde farklılıklar olduğu; benlik saygısının bütünleştirme, kaçınma ve uyma stilleri ile ilişkili bulunduğu; ayrıca, bu stilleri etkilediği ortaya konmuştur.
Determinants of Poverty: Turkey and Multi-country Analysis
(2018) Yazıcı, Mehmet; Gökmen, Aytaç; Yazıcı, Mehmet; Gökmen, Aytaç; 144084; 52039; 17660; İktisat; Uluslararası Ticaret ve Finansman
In this study, the definition of poverty and the determinants of poverty are discussed in detail. After examination of the poverty situations of all income groups according to World Bank classification have been analyzed separately by the method of regression. According to the analysis conducted by the method of dynamic panel generalized least square regression, impact on current poverty from the previous year and the current growth of poverty has been observed, yet the effects of inflation on poverty are controversial. The exchange rate is not included in the regression because the two-main macroeconomic discussed determinants of poverty in the literature are used in the regression as control variables that there is multicollinearity between exchange rate, growth and inflation. This study points out that in the struggle against the poverty, the most important contribution is gained with economic growth. Since high volatility in price level and exchange rates prevents the growth, inflation and exchange rate policies assessed in the perspective of the importance of growth policy.
Determinants Of Turkish Mining Trade Balance With Eu(15): Estimates From Bound Testing Approach
(2016) Yazıcı, Mehmet; Islam, Qamarul; 144084; İktisat
We estimate the short-run and long-run determinants of the trade balance of Turkish Mining with EU (15) countries as well as impact of Customs Union (CU) agreement using the bounds testing approach to the cointegration and the error correction modeling. In selecting the optimal model, we follow Yazici and Islam (2011a, 2011b, 2012) and Yazici (2012) and adopt their model selection strategy where selection is made from the set of those models that satisfy both diagnostic tests and cointegrtion, thus ensuring the selection of a statistically reliable and cointegrated model. Estimation results based on the data for 1988-I to 2008-IV period indicate that in the determination of mining trade balance in the short-run only real domestic income matters. Long-run results indicate that real exchange rate and real domestic income variables have coefficients with expected signs but they are not statistically significant. Only statistically significant long-run determinant of mining trade balance is real EU(15) income. Dummy variable for the customs union agreement does not have a statistically significant coefficient, meaning that the agreement does not have a significant long-run effect on mining trade balance of Turkey with EU(15).
Does the Incomplete Information Matter with Export Quotas?
(2006) Yazıcı, Mehmet; 144084; İktisat
This study investigates whether or not incomplete information matters when the government adopts the export quotas in intervening in the oligopolistic export markets. Incomplete information the government has is about the unit-production cost of the domestic firm. It is shown first that quotas optimal under full information (full-information policy) result in Stackelberg outcome, the best outcome in a non-cooperative setting from the domestic firm`s point of view. When the full-information policy is implemented in the presence of incomplete information, it is found that no cost-type has an incentive to misrepresent itself as the other type. This means that full-information outcome will be achieved with incomplete information. Hence, incomplete information does not matter in the case of export quotas. This result, however, does not carry over to the case of more than one domestic firm.
Does workplace envy always have detrimental consequences in organizations? A study of public and private sector employees
(2020) Şener, İrge; Karabay, Melisa; Elçi, Meral; Erman, Halil; 21583; İşletme
Purpose Based on the situational approach for envy, the purpose of this paper is to examine the effect of two-dimensional workplace envy (being envied and envying others) on the task and contextual performance of employees working in either private or public sector organizations. Design/methodology/approach This study was conducted on survey data collected from 988 private sector employees and 530 employees from the public sector employed in Istanbul. Following a quantitative empirical design, structural equation modeling was used to test the hypotheses. Findings The study results revealed that envying-others dimension has a significant negative effect on both task performance and contextual performance. In addition, the findings indicate more envious feelings of private sector employees than public sector employees. For public sector employees, male participants were found to envy others more than females. Research limitations/implications In addition to the contributions, this study has its limitations. First, although the study was carried out with a comprehensive sample, it is limited to the views of 1,518 employees in Istanbul and is a cross-sectional study. Also, employee performance is evaluated through self-reporting, which forms another limitation; it could have been more reliable for the supervisors to assess their subordinates' performance. Practical implications Apart from scholars, our findings have implications for practitioners. Feelings such as envy that comes with a sense of competition can create an environment that stimulates people, motivates them to work, can make them productive and can also cause an ultimately destructive situation. This makes it critical to manage envy in the workplace. Though there may be facilitators behind it, one crucial factor that fuels envy in the workplace is the lack of fair human resources policies and systems. Still, human resources management is undeveloped in most public organizations. With effective human resources management, there may be some roadmaps for managers to dissolve conflicts arising from envy. First, it is imperative to have systems that will separate the employee from the others, which everyone will accept, strengthening the feelings of justice among employees. Envy often occurs following a social comparison. Management can implement an incentive system that supports employee collaboration and avoid nepotism. Especially in private organizations where the competition is more among employees, managers should give more attention to understand their subordinates' feelings. The managers' attention to expressing their feelings toward their subordinates could establish an equal distance within the workplace. In this sense, language selection is critical, and managers should be mindful of linguistic triggers. Managers should not avoid giving both positive and negative feedback to their employees. Unwarranted and unsystematic reward and/or punishment systems, made with the good intentions of increasing competition, can trigger envy. Finally, managers should implement an open-door policy and open communication that will encourage all team members to be transparent to each other. Originality/value The study was based on a rationale that envy has detrimental workplace outcomes that lead to low task and contextual performance. Although there exists a recent interest for examining the relation between workplace envy and employee performance, based on being envied and envying others dimensions, these studies are limited. This study focuses on these dimensions and performance relations, and it also provides a comparative outlook for public and private sector employees in Turkey in terms of workplace envy.
Exchange Rate And Bilateral Trade Balance Of Turkey With EU (15) Countries
(2014) Yazıcı, Mehmet; Islam, M. Qamarul; 144084; İktisat
This paper investigates the short-run and long-run impact of real exchange rate on the bilateral trade balance of Turkey with EU (15) countries. We’ve employed the bounds testing approach to the cointegration and the error correction modeling. Following Yazici and Islam (2011a, 2011b, 2012) and Yazici (2012), we select the optimal model from the set of those models that satisfy both diagnostic tests and cointegration. Thus, unlike the other studies, it is ensured that a statistically reliable and cointegrated model is picked up for estimation. Based on the quarterly data for 1982-I to 2001-IV period, estimation results indicate no evidence of J-curve in the short run in any of Turkey’s bilateral trade with EU(15) countries. In the long run, however, real depreciation of Turkish Lira improves the trade balance of Turkey with Austria, Denmark, France, Ireland, Italy, Sweden and UK.
Is there a Purchasing Power Parity (PPP) Puzzle? New Evidence from a Nonlinear Asymmetric Panel Unit Root Test
(2016) Çorakçı, Ayşegül; 103299
This study re-examines the validity of the purchasing power parity (PPP) hypothesis for 24 OECD countries. The econometric methodology implemented not only allows for asymmetric nonlinear mean reversion within a panel context, but also corrects for the cross-sectional dependence bias frequently encountered in panel data. This feature is important because a test that ignores the presence of asymmetry and cross-sectional dependence when they are in fact present in the data would lead to misleading results. We obtain relatively stronger evidence in favor of the PPP hypothesis when compared to the other alternative panel unit root tests. However, on the whole, this support is still weak even after allowing for asymmetric nonlinear mean reversion in the real exchange rate series. Therefore, to reconcile the data with the theory further methods should be developed.
Is there convergence in renewable energy deployment? Evidence from a new panel unit root test with smooth and sharp structural breaks
(2023) Omay, Tolga; Omay, Tolga; 103299; Çankaya Meslek Yüksekokulu
This study examines whether the contribution of renewable energy to the total primary energy supply converges in a panel of 24 OECD countries over the period 1960–2020. To this end, a new panel unit root test that allows for both sharp and smooth breaks is proposed to test for the stochastic convergence hypothesis. Although renewable energy convergence is not rejected when the newly proposed test is applied to the full panel of OECD countries, it found only moderate support within the members of the panel using a sequential panel selection methodology. In fact, in two high-income OECD countries, the contribution of renewable energy to the primary energy supply shows no sign of convergence: Poland and Iceland. Therefore, the renewable energy shares seem to be converging to a common steady state in only a group of OECD countries over the long run. This uneven pattern of convergence, in turn, suggests that the OECD countries are still far away from developing a common sustainable renewable energy target, calling for urgent international policy cooperation to encourage the divergent economies to seek out the menu of policies that ensure the worldwide success of renewable energy transformation.
Kadınların Yoksulluğu Yaşama Biçimleri : Yapabilirlik Ve Yapabilirlikten Yoksunluk
(2004) Kardam, Filiz; Yüksel, İlknur; Siyaset Bilimi ve Uluslararası İlişkiler
Bu çalışmada düşük sosyo-ekonomik gruptaki kadınların yoksulluğu algılamaları, yoksullukla ilgili tecrübeleri ve yaşam stratejileri Amartya Sen’in ‘yapabilirlik yaklaşımı’ndan yararlanılarak analiz edilmiştir. Makalenin amacı, temel kapasiteleri ve yaşam deneyimleri farklılık gösteren kadınların yoksulluğu yaşama biçimleri arasındaki benzerlik ve farklılıkları ortaya çıkarırken, gelir ve tüketimin yanı sıra maddi olmayan kaynakları ve olanakları da ele almaktır. Çalışmada, Ankara’da düşük gelir grubunda yaşayan 40 kadın ile derinlemesine görüşmeler yapılmıştır. Görüşülen kadınların evleri ve çevreleriyle ilgili gözlemlere ek olarak yoksulluğu önleyici programlara sahip bazı kurumlardan da bilgi edinilmiştir.
Multiple linear regression model under nonnormality
(2004) Islam, M. Qamarul; Tiku, Moti L.
We consider multiple linear regression models under nonnormality. We derive modified maximum likelihood estimators (MMLEs) of the parameters and show that they are efficient and robust. We show that the least squares esimators are considerably less efficient. We compare the efficiencies of the MMLEs and the M estimators for symmetric distributions and show that, for plausible alternatives to an assumed distribution, the former are more efficient. We provide real-life examples.
Nonnormal Regression.I. Skew Distributions
(2001) Islam, M. Qamarul; L. Tiku, Moti; Yildirim, F.
In a linear regression model of the typey¼ Xþe, it is oftenassumed that the random erroreis normally distributed. Innumerous situations, e.g., whenymeasures life times or reac-tion times,etypically has a skew distribution. We considertwo important families of skew distributions, (a) Weibull withsupport IR:ð0,1Þon the real line, and (b) generalised logisticwit hsupport IR:ð 1,1Þ. Since the maximum likelihoodestimators are intractable in these situations, we derivemodified likelihood estimators which have explicit algebraicforms and are, therefore, easy to compute. We show that theseestimators are remarkably efficient, and robust. We develophypothesis testing procedures and give a real life example
Plant Size, Turnover and Productivity in Malaysian Manufacturing
(2010) Doğan, Ergun; Wong, Koi Nyen; 43080; İktisat
Malaysian manufacturing has an asymmetrical structure: small and medium-sized enterprises dominate in numbers, but contribute relatively little to total output, employment, and exports as compared to their larger counterparts. In light of an increasingly competitive environment arising from globalization, a sound knowledge of turnover patterns within the sector by plant size and its potential impact on aggregate productivity growth is imperative. We find that turnover, particularly of large plants, makes a substantial contribution to overall productivity growth in manufacturing. Hence, from a policy perspective, facilitating turnover might be as important as supporting existing plants in promoting aggregate productivity growth.
Terrorism and the Stock Market: A Case Study for Turkey Using STR Models
(2014) Omay, Tolga; Omay, Tolga; 103299; Çankaya Meslek Yüksekokulu
Several attempts have been made in the literature to analyze the detrimental effects of terrorist activities on the stock market. However, in neither of these studies the effects of terrorist activities on stock returns are investigated through employing nonlinear models in spite of the fact that most financial data is shown to exhibit nonlinear behaviour. This study, therefore, aims to contribute to this growing area of research by exploring the potential nonlinear effects of terrorist activities on stock returns by employing smooth transition regression (STR) models. Our results show that terrorism has a statistically significant negative effect on the stock index when the intensity of terrorist activities passes a certain threshold level. This negative effect continues for terrorist activities below this threshold level, but becomes statistically insignificant. This study by conducting the analysis within a nonlinear framework offers important insights into the investors who want to make portfolio diversification strategies against terrorism risk.
The Effect of Energy Importation from Russia on Turkey's Current Account Deficit
(2019) Gökmen, Aytaç; Yazıcı, Mehmet; Gökmen, Aytaç; Yazıcı, Mehmet; 144084; Uluslararası Ticaret ve Finansman; İktisat
Energy is a fundamental input of social and economic development of a country. Yet, some of the countries in the world are rich in terms of energy and some countries lack the necessary amount of energy they require. The Republic of Turkey is situated at the threshold of Eurasia and is close to the richest energy basins of the world in its vicinity. However, Turkey is not self-sufficient in terms of energy and in order to correspond to its increasing energy necessity, it must import energy from neighboring countries, mainly from Russia. Moreover, the aim of this study is to analyze the energy trade of Turkey with Russia and its impact on its current account deficit. In order to analyze this issue, various econometric methods are utilized in this study. With respect to this analysis, it is evident that the energy importation of Turkey from Russia leads to an increase in its current account deficit.
The intermediary institutions which are preferred for manipulative trading: Evidence from an emerging market
(2017) Doğanay, Mete; Aktaş, Ramazan; Somuncu, Kartal; 112010
This research investigates the type of intermediary institutions chosen by the manipulators for their manipulative trading. Univariate and multivariate analyses are performed and three variables having significant effect on the manipulators’ choice of intermediary institution for their manipulative trading are found. These variables are being publicly traded, size in terms of total assets, and gross profit margin. Being publicly traded and size are positively; gross profit margin is negatively related to the manipulators’ choice of intermediary institution for their manipulative trading. Managers of the intermediary institutions and regulators should be aware of these results and regulators should scrutinize high volume transactions conducted through this type of intermediary institutions more closely.

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