قياس الكفاءة الفنية لشركات النقل بالسكك الحديدية في البلدان النامية: باستعمال تقنية التحليل المغلف للبيانات على مرحلتين (مقاربة (Bootstrap
الملخص
تهدف هذه الدراسة الى تقييم مستوى الكفاءة الفنية لشركات النقل بالسكك الحديدية لعينة من البلدان النامية خلال الفترة الزمنية الممتدة من 2013 إلى 2018. نطبق تقنية التحليل المغلف للبيانات بمقاربة Bootstrap على نموذج ذو توجه مدخلي تحت فرضية عائد السلم المتغير. بصفة عامة، تشير نتائج الدراسة إلى ان تطبيق تقنية التحليل المغلف للبيانات بمقاربة Bootstrap تمكننا من تقدير مستويات اكثر اتساقا و واقعيتا للكفاءة الفنية مقارنة بالمقاربة التقليدية. بحيث أظهرت النتائج ان شركات النقل بالسكك الحديدية للعينة المدروسة تعتبر كفؤة في حدود 56,1 % على المتوسط، مما يعكس قدرة شركات النقل على تخفيض ما نسبته 43,9 % من مواردها المتاحة و في نفس الوقت تحقيق مستويات اعلى من الإنتاج. كما اشارت النتائج الى ان مستويات الكفاءة متفاوتة بين شركات النقل قيد الدراسة و ان معظمها شهد تدهورا في مستوى الأداء خلال الفترة المدروسة مع تسجيل تذبذب في تطور الكفاءة الفنية لبعض الشركات خلال الفترات الوسطى.
التنزيلات
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Appendix
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