Understanding the economic impact of psychological and social forms of workplace aggression to society could yield important insights into the magnitude of this occupational phenomenon. The objective of this systematic review was to collate, summarize, review and critique, and synthesize the cost of psychosocial workplace aggression at the individual- and societal-level. A peer-reviewed research protocol detailing the search strategy, study selection procedures and data extraction process was developed a priori. Both the academic and grey literatures were examined. To allow for basic comparison, all costs were converted and adjusted to reflect 2014 US dollars. Twelve studies, from five national contexts, met the inclusion criteria and were reviewed: Australia (n=2), Italy (n=1), Spain (n=1), the United Kingdom (n=3) and the United States (n=5). The annual cost of psychosocial workplace aggression varied substantially, ranging between $114.64 million and $35.9 billion. Heterogeneity across studies was found, with noted variations in stated study aims, utilized prevalence statistics and included costs. The review concludes that existing evidence attests to the substantial cost of psychosocial workplace aggression to both the individual and society, albeit such derived estimates are likely gross underestimates. The findings highlight the importance of interpreting such figures within their conceptual and methodological contexts.
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