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Muhammed Qamarul İslam
E-mail
mislam@metu.edu.tr
Department
Department of Statistics
ORCID
0000-0002-9013-2239
Scopus Author ID
55547120879
Web of Science Researcher ID
U-6169-2018
Publications
Theses Advised
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Real exchange rates and job flows: evidence from Turkey
Dogan, Ergun; İslam, Muhammed Qamarul; Yazici, Mehmet (2018-01-01)
This study investigates the effects of the real exchange rate on job flows in Turkish manufacturing industries between 2006 and 2015 using data at the four-digit NACE Revision 2 level. Using dynamic panel data models, we f...
Firm size and job creation: evidence from Turkey
Dogan, Ergun; İslam, Muhammed Qamarul; Yazici, Mehmet (2017-04-01)
This study examines the relationship between firm size and job creation by using an extensive data set covering all non-farm Turkish businesses with 20 or more employees from 2003 to 2010. We find that small firms (firms w...
Estimation and hypothesis testing in multivariate linear regression models under non normality
İslam, Muhammed Qamarul (Informa UK Limited, 2017-01-01)
This paper discusses the problem of statistical inference in multivariate linear regression models when the errors involved are non normally distributed. We consider multivariate t-distribution, a fat-tailed distribution, ...
Inference in multivariate linear regression models with elliptically distributed errors
İslam, Muhammed Qamarul; Yazici, Mehmet (2014-08-01)
In this study we investigate the problem of estimation and testing of hypotheses in multivariate linear regression models when the errors involved are assumed to be non-normally distributed. We consider the class of heavy-...
Estimation in multivariate nonnormal distributions with stochastic variance function
İslam, Muhammed Qamarul (2014-01-01)
In this paper the problem of estimation of location and scatter of multivariate nonnormal distributions is considered. Estimators are derived under a maximum likelihood setup by expressing the non-linear likelihood equatio...
Model selection uncertainties and model averaging in autoregressive time series models
Yazici, Mehmet; İslam, Muhammed Qamarul (2012-04-01)
Selecting the correct lag order is necessary in order to avoid model specification errors in autoregressive (AR) time series models. Here we explore the problem of lag order selection in such models. This study provides an...
A Single Phase AC-AC Boost Converter With Improved Input Power Factor and THD
Kabir, Md. Ashfanoor; Abedin, Amina Hasan; Mustafiz, Rubiya Binta; İslam, Muhammed Qamarul; Choudhury, M. A. (2011-09-10)
A new circuit is proposed for single phase AC-AC conversion using Boost topology. Input Power factor, input current Total Harmonic Distortion (THD) and efficiency of the circuit are examined for the proposed circuit for di...
IMPACT OF EXCHANGE RATE AND CUSTOMS UNION ON TRADE BALANCE AT COMMODITY LEVEL OF TURKEY WITH EU (15)
Yazici, Mehmet; İslam, Muhammed Qamarul (2011-09-01)
This paper investigates the short-run and long-run impact of exchange rate and customs union on the trade balance at commodity-group level of Turkey with EU (15). Bounds testing approach is employed where a new strategy in...
Multiple linear regression model with stochastic design variables
İslam, Muhammed Qamarul (Informa UK Limited, 2010-01-01)
In a simple multiple linear regression model, the design variables have traditionally been assumed to be non-stochastic. In numerous real-life situations, however, they are stochastic and non-normal. Estimators of paramete...
Mahalanobis distance under non-normality
Tiku, Moti L.; İslam, Muhammed Qamarul; Qumsiyeh, Sahar B. (Informa UK Limited, 2010-01-01)
We give a novel estimator of Mahalanobis distance D2 between two non-normal populations. We show that it is enormously more efficient and robust than the traditional estimator based on least squares estimators. We give a t...
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