We investigate the pairwise causality of inflation rates across time and frequencies, inflation cycle synchronization and network structure of causality between five ASEAN countries: Indonesia, Malaysia, The Philippines, Singapore, and Thailand. We draw our empirical results and conclusions by implementing dynamic conditional correlations (DCCs), a wavelet measure of cohesion for inflation cycle evolution assessment, and the spillover network index model of Diebold and Yilmaz [1,2]. We find evidence of time-dependent variation in the strength of co-movement between inflation cycles across countries. Positive network causality between inflation cycles and inflation integration across the ASEAN countries are identified. The lead-lag properties of economic indicators are observed to depend on the cycles periodicity. The inflation synchronization is particularly pronounced in Thailand. (C) 2019 Elsevier B.V. All rights reserved.