1) Price indices for international transport of passengers by rail
The indices have been published since January 2000. Price development is measured on 78 selected representatives using the statistical report Ceny ZO 2a - 12.
The price development is measured from the viewpoint of assets and liabilities. The assets include payments of foreign railways for crossing our territory, where they have their destinations. Transport in transit is count in assets separately. In liabilities there are included payments alienated to foreign countries for the use of foreign lines.
For the purpose of calculating the price index, per ticket rates (excl. tax) relating to the 2nd
class carriage in CZK without additional charges valid on the 10th
calendar day of the reference month are measured. International settlement of payments for passenger transport by rail has been made in EUR and converted from national currencies into CZK using the railway exchange rate in force at the time of reporting of prices.
2) Price indices for international transport of goods by rail
These indices have been released since January 1998. Price trends are measured on 36 chosen representatives using the national statistical report Ceny ZO 2 - 12.
Measured are railway freight prices in exports and imports of goods transported over the Czech Republic’s territory and in transit. Average prices (tax excl.) calculated from tariff prices and from contractual prices (including discounts) are measured when imports and exports are affected. As far as transit transport is concerned, tariff prices are observed and converted from EUR into CZK using the standard railway exchange rate valid at the time of the price reporting. The established prices are averages for the whole month.
3) Price indices for international air transport
These indices have been also published since January 1998. Observed are tariff prices (tax excl.) in force on the 10th calendar day of the month under observation, using the national statistical report Ceny ZO 3 - 12.
A total of 143 airlines of regular air transport have been chosen for price representatives, of which 98 for passenger air transport and 45 for freight air transport. Prices of air tickets bought abroad are converted from national currencies into CZK, using the IATA-Clearing-House Exchange Rates in force at the time of price reporting.
There are extraordinary revisions
of the weighting pattern carried out for monthly price indices of international transport; or indices are transferred onto a new price base. Representatives and respondents are updated within the revisions, too. The revisions’ purpose is to update price monitoring trends. In some cases statistical variables are changed, which would cause the comparison of time series is disrupted, or a new time series is formed, respectively.
In 2011 a new revision of price indices of international transport was carried out
. Since January 2012 price indices are calculated applying a new weighting pattern with constant weights of 2010 (former constant weights of 2005). The weights in the index pattern were derived from 2010 sales/revenues, which were collected from respondents. The new time series of basic indices is built on the price base ‘2010 average = 100’. Calculated indices are chained to the price base ‘2005 average = 100’. The continuation of the existing time series is provided this way.
The calculation of indices:
The calculation of the above-mentioned indices is carried out by the modified Laspeyres formula:
- the price (of representative) in the reference period
- the price (of representative) in the base period – average price for the year 2010
- constant weights (relative structure) – the value of sales/revenues in 2010
Calculated indices are chained to the price base ‘2005 average = 100’ to provide the continuation of the existing time series this way. Further, these indices are related to ‘the same period of previous year = 100’ and ‘previous period = 100’.