Core inflation in May 2014
NBP data: In May, inflation net of food and energy prices amounted to 0.8% y/y and was the same as in April. The CPI index in May stood at 0.2%.
On 16 June, Narodowy Bank Polski published data on core inflation indices in May 2014. In year-on-year terms, inflation:
- excluding administered (state-controlled) prices fell to -0.2% from -0.1% recorded at the end of April;
- excluding the most volatile prices amounted to 0.3%, the same as in April;
- excluding food and energy prices amounted to 0.8%, the same as in April;
- the so-called 15% trimmed mean (excluding the impact of 15% of the price basket characterised by the highest and lowest growth rates) amounted to 0.5%, as against 0.1% a month earlier.
The CPI index, announced by GUS on 13 June amounted to 0.2 % (y/y), as against 0.3% at the end of March.
Narodowy Bank Polski computes the four core inflation indices on a monthly basis in order to highlight the nature of inflation developments in Poland. The CPI shows the average price movement across the whole broad basket of consumer goods. By calculating core inflation indices we can address price changes in various segments of the basket. Thus, sources of inflation can be identified more precisely, and future trends forecasted more accurately. Furthermore, it can be determined to what degree the observed inflation trend is a lasting phenomenon, and to what extent it is driven by e.g. short-lived price hikes triggered by incidental factors.
The core inflation measure most frequently used by analysts is inflation excluding food and energy prices. It captures movements in prices which are fairly responsive to the central bank's monetary policy. On the other hand, energy prices (including fuel prices) are not set domestically, but determined in the global markets, sometimes as a result of speculation. Also food prices are largely dependent on, among other things, the weather and the situation prevailing in the domestic and worldwide agricultural market.
See also: The NBP announcement on May 2014 core inflation »