Interactions of micro prices with leads and lags play significant role in explaining the behavior of aggregate price index. Thus, for understanding inflation and deflation, it is essential to explore the mechanism of interactions of micro prices. Based on a new method, we show that irrespective...

Interactions of micro prices with leads and lags play significant role in explaining the behavior of aggregate price index. We present a new method of exploring the nature of such interactions of micro prices. For Japan's data, we identify two macro shocks, one external and the other domestic,...

We apply a complex Hilbert principal component analysis (CHPCA) to a set of Japanese economic data collected over the last 32 years, comprising individual price indices of middle classification level (imported goods, producer goods, consumption goods and services), Indices of Business Conditions...

Inter-firm organizations, which play a driving role in the economy of a country, can be represented in the form of a customer-supplier network. Such a network exhibits a scale-free degree distribution, disassortative mixing and a prominent community structure. We analyze a large-scale data set...

In this study, we investigate the flow of money among bank accounts possessed by firms in a region by employing an exhaustive list of all the bank transfers in a regional bank in Japan, to clarify how the network of money flow is related to the economic activities of the firms. The network...