User:Zainab Mubashar

SeCoNdArY DaTa: It refers to the statistical material which is not originated by the investigator himself but obtained from some one else's records, or when Primary data is utilised for any other purpose at some subsequent enquiry it is termed as Secondary data. This type of data is generally taken from newspapers, magazines, bulletins, reports, journals etc. e.g. National Income, Exports or Imports, is used in some other statistical enquiry, it will be termed as Secondary data. According to M.M. Blair, "Secondary data are those already in existence for some other purpose than the answering of the question in hand."

Merits •	Use of secondary data is very convenient. •	It saves time and finance. •	In some enquiries primary data cannot be collected. •	Reliable secondary data are generally available for many investigations. Demerits •	It is very difficult to find sufficiently accurate secondary data. •	It is very difficult to find secondary data which exactly fulfils the need of present investigation. •	Extra caution is required to use secondary data. •	These are not available for all types of enquiries. how we collect the Secondary data. There are the following sources canbeusedforgettingtheSecondarydata:

Official Sources:When we collect data from from Official Sources like Governmental Sources, Ministries,PublicationsofStatisticsDivisions,etc.

Semi-Official Sources: When the data is collected for Semi-official sources like State Bank Publications,Councils,Muncipalcommitees,etc.

Private Sources: When the data is collected from industries, Market committee, Associations andetc. Daily Newspapers: it is a great source of supplying daily, statistical infos relating the behaviour ofprices,employment,demand,Foreignstockmarketsratesandetc.

Publications of Research Organizations: The data provided by research organizations is a very good source for collecting Secondary data. It is the data collected from Universities, Computing ResearchOrganizations,andetc.

International Publications: International publications are also the most important source for Secondary data collection. It is the data collected from publications of United Nations, International Monetary Fund, NASA, and etc.