Managing input data Data requirements Managing non-response / missing data Quality adjustment

Data requirements Latest Census Data -- for selection of products, product groups, Industries and reporting establishments -- for weights calculation Value added (industry level) Output value (product group and product levels) Employment ( establishment level ) Producers price index – for base year set up Business Register

Data requirements On Regular basis : Output – for compilation of IIP Output Value ( production / sale ) Output quantity Input – for compilation of IIP No of hour worked No of worker Materials used / consumed

Data requirements Administrative Data – for compilation of IIP A list of government agencies / OICs which have the records of these Establishments Producers price index – for compilation of IIP

Managing non-response / missing data Non-Response This refers to no returns from the surveyed establishments Ways of handling Continue to remind them (phone or by letters Stress the important of the data Visit / talk to the management Using account manager system for major Legal action

Managing non-response / missing data Missing Data This refers to the required data for compilation of IIP is missing. Imputation carry forward previous period data mean regression apply growth rate of similar size companies of the same industry use administrative data

Quality adjustment ‘Quality’ refers to all the characteristics of goods and services that are sufficiently different to make them distinguishable from each other from economic point of view Any Change in quality must be considered accordingly. The method used to incorporate quality changes in the IIP depends on the data source and the methods used to compile the Index Deflated by a price index Avoid volume extrapolation