These findings suggest that rising narcissism is not a global trend and not evident even in societies that share many cultural and social commonalities with the US

Narcissism over time in Australia and Canada: A cross-temporal meta-analysis. Takeshi Hamamura, Chelsea A. Johnson, Michelle Stankovic. Personality and Individual Differences, November 21 2019, 109707. https://doi.org/10.1016/j.paid.2019.109707

Abstract: The literature on whether narcissism is increasing in the United States has been controversial. The notion of rising narcissism and self-focused culture, however, has shaped the public understanding of generational differences within and outside the United States. The current research examined whether narcissism has increased over time in two Western countries, Australia and Canada. A temporal meta-analysis (k = 102, n = 24,990) found no evidence of rising narcissism. Findings from these two countries showed a different temporal pattern, with narcissism decreasing in Canada particularly after 2008, suggesting the possible effects of economic recession in tempering narcissism. An analysis of the subscale scores performed on a subset of the data, following a measurement equivalent analysis, corroborated this interpretation. These findings suggest that rising narcissism is not a global trend and not evident even in societies that share many cultural and social commonalities with the United States.

The dataset used, the processing code (R language) and references for the data in the CSV file are available at https://osf.io/37pe6