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PORTFOLIO DIVERSIFICATION WITH COUNTRY INDEX FUNDS
Gulser Meric,Mitchell Ratner,Ilhan Meric People&Global Business Association 2008 Global Business and Finance Review Vol.13 No.2
In this paper, we use a novel application of the Capital Assets Pricing Model (CAP M) with country betas to determine if U.S. investors would benefit by adding iShares exchange-traded country index funds into their portfolios. Our findings indicate that U.S. investors would benefit by including any of the 21 iShares country index funds studied in the paper in their portfolios. We also use the Markowitz mean-variance portfolio optimization approach to determine which iShares country index funds can make the greatest contribution to global portfolios. We find that U.S. investors could increase the portfolio return per unit of volatility risk by increasing the foreign investment component in their global portfolios.
DETERMINANTS OF CAPITAL STRUCTURE, DIVIDEND POLICY, AND INSIDER OWNERSHIP IN JAPANESE CORPORATIONS
Gulser Meric,Larissa Kyj,Ilhan Meric,Christopher Lacke People&Global Business Association 2003 Global Business and Finance Review Vol.8 No.1
The relationship between a firm's operational characteristics on one hand and its managerial ownership, debt, and dividend policies on the other has received considerable attention in finance literature. The determinants of each policy are generally studied independently. However. the firm's managerial ownership, debt, and dividend levels are related not only to the firm's operational characteristics but also directly to each other In this study, we use a three-stage least squares (3SLS) simultaneous equations model to study the interaction between the financial Leverage, dividend policy, insider ownership decisions in Japanese non-financial corporations. We find that dividend policy, business risk and profitability are significant determinant of financial leverage financial Leverage, business risk, and profitability are significant determinants of dividend policy; and, institutional ownership and business risk are significant determinants of insider ownership in Japanese non-financial corporations. These findings are generally in line with earlier findings for U.S. non-financial corporations. However, there are some important differences.
THE DIMINISHING BENEFIT OF GLOBAL PORTFOLIO DIVERSIFICATION
Ilhan Meric,Gulser Meric People&Global Business Association 2004 Global Business and Finance Review Vol.9 No.2
In this paper, we study the impact of the September 11, 2001 terrorist attacks in the U.S. and the ensuing war against terrorism during the post-September-11 period on the co-movements of the U.S., Japanese, Australian, U.K., and German stock markets. Our rolling correlation analysis results indicate that correlation between the U.S. stock market and the world's other major stock markets increased substantially, and therefore, the benefit of global portfolio diversification to U.S. investors with these markets decreased considerably after September 11, 2001. Our Granger causality test results indicate that there is a closer linkage between the U.S. stock market and the world's other major stock markets in the post-September-11 period than in the pre-September-11 period.
RIEMANNIAN SUBMERSIONS WHOSE TOTAL SPACE IS ENDOWED WITH A TORSE-FORMING VECTOR FIELD
Meric, Semsi Eken,Kilic, Erol Korean Mathematical Society 2022 대한수학회논문집 Vol.37 No.4
In the present paper, a Riemannian submersion 𝜋 between Riemannian manifolds such that the total space of 𝜋 endowed with a torse-forming vector field 𝜈 is studied. Some remarkable results of such a submersion whose total space is Ricci soliton are given. Moreover, some characterizations about any fiber of 𝜋 or the base manifold B to be an almost quasi-Einstein are obtained.
Analgesic and Antiinflammatory Activities of Some New Mannich Bases of 5-Nitro-2-Benzoxazolinones
Koksal, Meric,Kupeli, Esra,Yesilada, Erdem,Erdogan, Hakki,Gokhan, Mesrin 대한약학회 2007 Archives of Pharmacal Research Vol.30 No.4
In this study, the synthesis of a novel series Mannich bases of 5-nitro-3-substituted piperazino-methyl-2-benzoxazolinones are described. The structures attributed to compounds 3a-3k were elucidated using IR, $^1$H-NMR spectroscopic techniques besides elemental analysis. The compounds were examined for their in vivo antiinflammatory and analgesic activities in two different bioassays, namely, carrageenan-induced hind paw edema and p-benzoquinone-inducedabdominal constriction tests in mice, respectively. In addition, the ulcerogenic effects of the compounds were determined. Among the tested derivatives most promising results were obtained for the compounds bearing electron-withdrawing substituents (F, Cl, COCH$_3$) in the ortho/para position of the phenyl nucleus on the piperazine ring at 3 position of benzoxazoli-none moiety (3a, 3b, 3c, 3d, 3h). The analgesic activities of all compounds are higher than their antiinflammatory activities. Antiinflammatory inhibitory ratios for all compounds were above 30% for the last two measurements. Because of this compounds 3a,3b,3c,3d deserve attention and may be considered for further evaluation.
한국과 터키 과학고등학교 남녀학생들의 수학 학습에서의 학습전략 및 학습동기 비교
MEHTAP MERIC,박지윤,정영미,박용한 한국과학영재교육학회 2017 과학영재교육 Vol.9 No.1
The purpose of this study is to compare Korean and Turkish science high school students in terms of their math learning strategies and math learning motivation. For this purpose, a total of 308 students were surveyed, including 188 students in science high schools in Korea and 120 students in Turkey's science high school. Results are as follows. First, Korean students used more learning strategies in math than Turkish students. While there was no gender difference in learning strategies for Korean students, male students in Turkey used more critical thinking strategies than their female peers. Second, Korean students had higher math learning motivation than Turkish students in all motivation sub-factors except self-efficacy. A significant interaction effect of country and gender was found in relation to learning motivation, showing that Turkish male students had higher extrinsic motivation and test anxiety than their female peers while no gender difference in learning motivation was found for Korean students. Third, there was no gender gap in math achievement for Korean students while a significant gender gap was found favoring female students in Turkey. The results implied that differences in culture and gender might affect students’ use of learning strategies and their level of learning motivation in math. 본 연구의 목적은 한국과 터키의 과학고등학교 학생들의 수학학습에서의 학습전략 및 학습동기를 비교하고 성별에 따라 차이가 있는지 살펴보는 것에 있다. 이를 위하여 한국의 과학고등학교에 재학 중인 188명의 학생들과 터키의 과학고등학교에 재학 중인 120명의 학생을 포함하여 총 308명을 대상으로 설문조사를 실시하였다. 본 연구를 통해얻은 결과는 다음과 같다. 첫째, 수학 학습전략에 있어서 한국학생들이 터키학생들에 비하여 학습전략을 더 많이 사용하는 것으로 나타났다. 한편 성별에 따른 차이를 살펴보았을 때, 우리나라 남녀 학생에게는 성차가 나타나지 않았고터키 학생들의 경우 비판적사고 전략에서만 남학생들이 여학생들보다 유의하게 더 높은 점수를 보여 주었다. 둘째, 수학 학습동기에 있어서는 한국학생들이 터키학생들에 비하여 자기효능감 요인을 제외한 모든 하위요인들에서 점수가높게 나타났다. 또한 학습동기 하위요인 중 성별과 국가 간의 유의미한 상호작용 효과가 있었는데, 한국의 경우에는남녀 학생 간 통계적으로 유의미한 차이가 없었지만 터키의 경우 남학생이 여학생들에 비해 외적 동기와 시험불안이높게 나타났다. 셋째, 수학성취도에서 성별에 따른 차이를 비교해 보았을 때, 한국의 경우 남녀 학생에게 유의미한차이가 없는 반면 터키의 경우에는 여학생들이 더 높은 수학성취도를 나타냈다. 본 연구의 결과는 국가 간 문화 및성별에 따른 차이가 학습전략의 사용과 학습동기에 영향을 줄 수 있음을 시사해 주었다.
DO SECTOR RETURNS LEAD THE STOCK MARKET? THE INTERNATIONAL EVIDENCE
Mitchell Ratner,Ilhan Meric,Gulser Meric People&Global Business Association 2006 Global Business and Finance Review Vol.11 No.2
This paper investigates the lead/lag relationship between the returns of a country's stock market index and 10 primary sector index returns. The sample consists of the Group of Seven (G-7) industrialized countries from January 1974 through December 2003. This study documents a statistically significant lead/lag relationship between sector returns and the stock market index returns in all seven countries. No sector is consistently significant across countries. The results of this study support the gradual information diffusion hypothesis: information travels slowly between asset classes.