00845nam a22001817a 450000500170000004000360001708200150005310000240006824500920009226000350018430000330021950001600025250000420041250000400045450200550049454600120054965001020056120260807121744.0  cRiphah International University  a657.3bASA  aAsad Jawaid (23895)  aCredit rating upgrades and stock return synchronicity:bevidence from S&P 500 companies  aIslamabadb(unpublished)c2021  a65 p.b: ill.c; 29 cm.e+CD  aSubmitted in partial fulfillment of the requirements for the degree of Master of Science in Human Resource Management to the Faculty of Management Sciences  aThesis supervisor: Dr. Zeshan Ghafoor  aIncludes bibliographical references  aThesis (MS)--Riphah International University, 2021  aEnglish  aAccounting-FinancevStock return synchronicityvCredit rating upgradesvEconometric modelingvFMS