INFORMATION SYSTEMS SIMILARITY: POST MERGER AND ACQUISITION

Information systems (IS) integration is an important aspect in merger and acquisition (M&A) process in organizations. Acquired and newly formed company as a result of M&A
may adopt new IS, either from acquirer company or other sources. One of the consequences
of M&A is closer degree of IS similarity between the acquirer and acquired companies.
Prior IS adoption studies usually apply individual level of analysis, such as Theory of
Reasoned Action (TRA) and Technology Acceptance Model (TAM). However, these
theories are argued less relevant to explain IS adoption in organizational level of analysis
(Fichman and Kemerer, 1997; Orlikowski, 1993). The current paper aims to propose factors
that influence IS similarities between acquirer and acquired company. The study
contributes to the IS adoption literature in terms of the use of organizational level of
analysis to develop a Model of Information Systems Similarity (MISS). The proposed
model integrates Resource Dependence Theory (RDT), Resource-based View (RBV), and
Institutional Theory