Statistical Yearbook Thailand 2012

Price Statistics Price statistics presents the consumer price index, producer price index and construction materials price index. These data were obtained from the Trade and Economic Indices Bureau, Office of the Permanent Secretary Ministry of Commerce. Consumer Price Index (CPI) Consumer Price Index is considered as a tool for measuring changes in cost of living when the price is changed and an inflation rates. Normally for the updates of the figures, which could reflect cost of population’s livings, weights and list of goods for the CPI calculation would be adjusted every 4-5 years based on the socio-economic survey conducted by the National Statistical Office. At present, Thailand’s consumer price index calculation emphasizing on general consumer price index, low income consumer price and rural consumer price index have been adjusted their weight every four years. Improving on the base year and their weight factors for calculating for calculating CPI of Thailand is based on the data of Household Socio-economics Survey conducting by National Statistical Office. Due to updating the weight and base year for calculating CPI changing from 2002 to 2007, therefore, the information as mentioned survey in 2007 has been used for adjusting CPI as well. Core consumer price index is the consumer price index excluding group of raw food and energy items. Producer Price Index (PPI) Producer Price Index is defined as measuring the rate of change in such prices reflecting to the producer at any time comparing to the base year. Producer Price Index is composed of two major groups as follow : 1. Producer Price Index by stage of processing (SOP) : The initial calculation of this index was in 1985 . It was calculated from three major groups of products, namely finished goods, intermediate materials and crude materials. Based on each Producer Price Index of three major product groups is independent, and reflecting the rate of change in such prices in each stage of processing, thus, total index is not calculated. 2. Producer Prices Index as classification of products by activity (CPA) : The initial calculation of this index was in 2000 . It calculated from three major groups of products, namely agricultural products, mining products and manufactured products. Not only Producer Price Index of which is derived from the calculation of three major product groups, the total index reflecting the rate of change in such producers ’ prices of each product groups as totally is also calculated. To reach the extremely real Index, thus, Producer Price Index (PPI) calculation has been adjusted the product listing and theirs weight according to theirs significant every four year. In 2004, the PPI calculation has been changed the listing, weight, and base year from 1995 to 2000 (2000 = 100)