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By distinguishing between ingroup versus outgroup conspiracy theories, this research seeks to explain a paradox in conspiracy theory research, namely, that conspiracy beliefs are associated with both derogation and justification of the social system. Study 1 (N = 1,481) was a survey in the context of the COVID‐19 pandemic in China, and the results revealed a negative correlation between belief in ingroup conspiracy theories and system‐justifying beliefs. In Study 2 (N = 195), exposure to outgroup conspiracy theories positively predicted system‐justifying beliefs, a finding that was serially mediated by external attributions and collective narcissism. In Study 3 (N = 256), exposure to ingroup conspiracy theories negatively predicted system‐justifying beliefs, a result that was serially mediated by internal attributions and anomie. In Study 4 (N = 616), exposure to a conspiracy theory about the US government increased system‐justifying beliefs among Chinese participants and decreased them among US participants. The distinction between ingroup versus outgroup conspiracy theories hence implies two different processes through which conspiracy theories affect system‐justifying beliefs. [ABSTRACT FROM AUTHOR]

Conspiracy theories tend to be prevalent, particularly in societies with high economic inequality. However, few studies have examined the relationship between economic inequality and belief in conspiracy theories. We propose that economic inequality leads people to believe conspiracy theories about economically advantaged groups (i.e., upwards conspiracy theories) and that moral evaluations of those groups mediate this relationship. Study 1 (N = 300) found support for these ideas in a survey among Chinese residents. Study 2 (N = 160) manipulated participants' perceptions of economic inequality in a virtual society. The manipulation shaped moral evaluations of economically advantaged groups, and conspiracy beliefs, in the predicted manner. In Study 3 (N = 191) and Study 4 (N = 210), we experimentally manipulated participants' perceptions of economic inequality in real Chinese society and replicated the results of Study 2. In addition, in Study 4, we find that economic inequality predicts belief in conspiracy theories about economically disadvantaged groups (i.e., downward conspiracy theories), which was mediated by anomie. We conclude that perceived economic inequality predicts conspiracy theories about economically advantaged groups and that moral evaluations account for this effect. Also, upward and downward conspiracy theory beliefs are associated with different psychological processes. [ABSTRACT FROM AUTHOR]