Scoppa, Vincenzo. “Technological Catch-up or Neoclassical Convergence? Identifying the Channels of Convergence for Italian Regions”. Economics and Business Letters 2, no. 4 (November 4, 2013): 169–181. Accessed September 17, 2026. http://156.35.33.188/index.php/EBL/article/view/10020.