Reliable and comprehensive statistics can be very expensive to collect and process. You may not have the authority to force compliance and so your data may have serious gaps. These pitfalls can be avoided if there are suitable secondary statistics that have already been compiled. However, you may not know exactly how the statistics were compiled and processed so may not fully know what they represent. Also, they may not measure exactly what you want or may not be based on the exact target population. These demerits can be overcome by collecting the statistics yourself.
merits and demerits of index number
what is merits and demerits of posters and advertisement? what is merits and demerits of posters and advertisement? what is merits and demerits of posters and advertisement? what is merits and demerits of posters and advertisement? what is merits and demerits of posters and advertisement? what is merits and demerits of posters and advertisement? what is merits and demerits of posters and advertisement? what is merits and demerits of posters and advertisement? what is merits and demerits of posters and advertisement?
merits and demerits of plastics
hotel merits and demerits
Secondary data helps in reducing time, effort and money required for the collection of data. It is easily available. It can be obtained from Text books, net etc.
Merits and demerits of liberalization is demerits of liberalisation. This is well known.
criket merits and demerits
merits and demerits of fasion
Merits and Demerits of media?
What are the merits and demerits of an economic system?
merits and demerits of privatization of VSNL
merits and demerits of wages and salary administration