• Endowment, commitment and convergence : a roadmap towards productivity growth [Electronic resource]Männasoo, Kadri; Hein, Heili; Ruubel, Raul7th International conference "Economic challenges in enlarged Europe" : 14-16 June 2015, Tallinn, Estonia : [conference proceedings]2015 / [CD-ROM] http://www.ester.ee/record=b3088567*est