Volume 15 Number 4 January 2014 INSTITUTE OF BUSINESS MANAGEMENT ENTREPRENEURSHIP & MANAGEMENT EXCELLENCE CENTRE KORANGI CREEK, KARACHI-75190, PAKISTAN UAN (9221) 111-002-004, FAX: (9221) 3509-0968, 3509-2658 E-mail: sabina@iobm.edu.pk, emec@iobm.edu.pk http://www.iobm.edu.pk PBR ISSN 1561-8706 PAKISTAN BUSINESS REVIEW Indexed and Abstracted by ECONLIT, Journal of Economic Literature Indexed by EBSCO, USA HEC Approved “Y” Category Journal Research: Determinants of Pakistan’s Export Performance Sajid Gul and Shafiq Ur Rehman Market Concentration in Manufacturing, Financial and Service Sectors of Pakistan Mirza Aqeel Baig Total Investment, FDI and Economic Growth in Pakistan: An ARDL Co Integration Analysis Irfan Ullah, Nisar Ahmad and Sofia Anwar Impact of Climate Change on Major Crops of Pakistan: A Forecast for 2020 Mirza Asjad Baig and Shahid Amjad Impact of Co2 Emissions: Evidence from Pakistan Mirza Asjad Baig and Mirza Aqeel Baig Determinants of Dividend Payout in Power and Cement Sectors Abdul Jabbar Kasim and Muhammad Ajaz Rasheed Do Human Resource Practices Affect Employee Performance? Irfan Saleem and Aitzaz Khurshid The Role of Personal and Organizational Factors in Occupational Role Stressors M.Naveed Riaz, Sajid Mehmood Alvi, Sehrish Nawaz, M.Akram Riaz, Jawwad M. Shujaat and Naila Batool Gender Differences in Self Esteem in Young Adolescents of Karachi Shelina Bhamani, Sabeen Jamil and Falak Zehra Mohsin Eliminating Netspeak from Academic Writings of University Students in Pakistan Sarwat Nauman and Nasreen Hussain Discussion: The Arena of Education: Isolation or Integration? Shelina Bhamani