A Panel Discrete Model for Credit Ratings in The Selected Countries Z.ÖSKÖNBAYEVA. A Panel Discrete Model for Credit Ratings in The Selected Countries. 19th INTERNATIONAL SYMPOSIUM ON ECONOMETRICS, OPERATIONS RESEARCH AND STATISTICS, 2018. http://eyi2018.kongre.marmara.edu.tr/en/xix-international-symposium-on-econometrics-operational-research-and-statistics-2018/scientific-program/abstract-and-full-text-book.