Later on Thursday, the advanced Tokyo Consumer Price Index (CPI) will be closely watched to confirm those views. These figures boost expectations of a hot CPI reading in January and strengthen the case for steady BoE interest rates, providing some support to the Pound. Economic Indicator Tokyo Consumer Price Index (YoY) The Tokyo Consumer Price Index (CPI), released by the Statistics Bureau of Japan on a monthly basis, measures the price fluctuation of goods and services purchased by households in the Tokyo region. The YoY reading compares prices in the reference month to the same month a year earlier. Generally, a high reading is seen as bullish for the Japanese Yen (JPY), while a low reading is seen as bearish.