Notes, Comments and Preliminary results Mar 25 2012 Tilemahos Efthimiadis and Panagiotis Tsintzos   The Internal-External Debt Ratio and Economic Growth   Abstract  Contact Information  Citation  Full Text  -  Preliminary Result   Jan 09 2012 Panagiotis Tsintzos   Public Investment Rules and Indeterminacy   Abstract  Contact Information  Citation  Full Text  -  Preliminary Result