“…The existing literature on the techniques of evaluation or measurement of synergy in M&As presents narrow or wider proposals for their depiction. Narrow proposals are largely focused on: (a) synergy sources ( Lubatkin, 1987 ; Kaplan, 2010 ); (b) factors to success ( Cullinan et al., 2004 ; KPMG, 2011 ); (c) anomalies concerning large-company combinations ( Sirower, 1997 ); (d) synergy management pitfalls ( Fiorentino and Garzella, 2015 ); (e) M&A principles ( Christensen et al., 2011 ); (f) ways of balancing the synergistic benefits ( Markides, 2008 ); (g) systematic risk or reduction of risks ( Chatterjee and Lubatkin, 1990 ; Chatterjee, 2007 ); (h) resource interactions ( Chatterjee and Brueller, 2015 ); and (i) challenges in managing acquisitions ( Haspeslagh and Jemison, 1991 ). The wider proposals for techniques to assess or measure synergies include: (a) models for measuring synergies in Pre-M&As ( Ansoff, 1965 ; Wartini-Twardowska, 2014 ; Fiorentino and Garzella, 2015 ); (b) factors of failure ( Haspeslagh and Jemison, 1991 ); (c) methods of valuation ( Damodaran, 2006 ; Lenz, 2011 ); (d) model of conditions determining the success of M&As ( Chadam and Pastuszak, 2013 ); and (f) classification of measures or identification of measures in the context of M&A performance ( Zollo and Meier, 2008 ; Meglio and Risberg, 2010 ).…”