二手资料的优点
1. 收集过程迅速而简单，成本低，用时少，范围广。
2. 不容易引起竞争对手的注意
3. 通过二手资料可以更好的分析出需要做原始资料调研的问题
4. 二手信息可能暴露潜在的危险，比如数据收集方法不合适，从而导致了一系列后果。对
一手资料调研有起到了警惕的作用。
5. 为现有的资料做补充，更深刻的去解释一手数据
6. 二手资料有时可以和一手资料作对比，对一手资料大体上进行确认。
二手资料的缺点
1. 不一定适用，二手资料有时不是为了当前目的而收集的，所以二手资料的相关性和准确
性都不高。
2. 二手资料的准确性有时难以保证。有时候原始资料中包含一些错误和偏差，二次分析者对此不了解，
可能使结论发生偏差
3. 二手资料很有可能是过时数据
4. 二手资料中可能包含了一些分析者的感情因素，有时会故意隐瞒一些真实数据。
5. 有时无法确定二手资料所用数据的可靠性。
有时二手资料的数据不充分，无法满足当前需求
The advantages of secondary data
The 1 collection process is quick and simple, low cost, less time consuming, a wide range of.
2 is not easy to cause competitors for attention
3 through the secondary data can better analyze the need to do original research data problem
4 second-hand information may be exposed to potentially dangerous, such as data collection method is not suitable, leading to a series of consequences. On the one hand research has played a vigilance function.
5 for the existing information added, more profound to explain a hand data 6 second-hand information can sometimes and first hand data for comparison, on the first hand data largely confirm.
The disvantages of Secondary data.
1 do not necessarily apply, second-hand information sometimes is not for the purpose of gathering secondary data, so the relevance and accuracy is not high.
2 secondary data accuracy is sometimes difficult to ensure. Sometimes the original data contains some errors and deviations, two analysts do not understand this, may make the conclusion deviation
3 second-hand information is likely to be outdated data
4 secondary data may contain a number of analysts of the emotional factors, will sometimes deliberately conceal some real data.
5 sometimes fail to identify the secondary data to the data reliability.
6 sometimes second-hand information data is not sufficient, is unable to satisfy the present demand
二手资料的优点
1. 收集过程迅速而简单，成本低，用时少，范围广。
2. 不容易引起竞争对手的注意
3. 通过二手资料可以更好的分析出需要做原始资料调研的问题
4. 二手信息可能暴露潜在的危险，比如数据收集方法不合适，从而导致了一系列后果。对
一手资料调研有起到了警惕的作用。
5. 为现有的资料做补充，更深刻的去解释一手数据
6. 二手资料有时可以和一手资料作对比，对一手资料大体上进行确认。
二手资料的缺点
1. 不一定适用，二手资料有时不是为了当前目的而收集的，所以二手资料的相关性和准确
性都不高。
2. 二手资料的准确性有时难以保证。有时候原始资料中包含一些错误和偏差，二次分析者对此不了解，
可能使结论发生偏差
3. 二手资料很有可能是过时数据
4. 二手资料中可能包含了一些分析者的感情因素，有时会故意隐瞒一些真实数据。
5. 有时无法确定二手资料所用数据的可靠性。
有时二手资料的数据不充分，无法满足当前需求
The advantages of secondary data
The 1 collection process is quick and simple, low cost, less time consuming, a wide range of.
2 is not easy to cause competitors for attention
3 through the secondary data can better analyze the need to do original research data problem
4 second-hand information may be exposed to potentially dangerous, such as data collection method is not suitable, leading to a series of consequences. On the one hand research has played a vigilance function.
5 for the existing information added, more profound to explain a hand data 6 second-hand information can sometimes and first hand data for comparison, on the first hand data largely confirm.
The disvantages of Secondary data.
1 do not necessarily apply, second-hand information sometimes is not for the purpose of gathering secondary data, so the relevance and accuracy is not high.
2 secondary data accuracy is sometimes difficult to ensure. Sometimes the original data contains some errors and deviations, two analysts do not understand this, may make the conclusion deviation
3 second-hand information is likely to be outdated data
4 secondary data may contain a number of analysts of the emotional factors, will sometimes deliberately conceal some real data.
5 sometimes fail to identify the secondary data to the data reliability.
6 sometimes second-hand information data is not sufficient, is unable to satisfy the present demand