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Erschienen in:
2012 | OriginalPaper | Buchkapitel
A Study on Correlation between Web Search Data and CPI
verfasst von : Chong Zhang, Benfu Lv, Geng Peng, Ying Liu, Qingyu Yuan
Erschienen in: Recent Progress in Data Engineering and Internet Technology
Verlag: Springer Berlin Heidelberg
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The web search data, which recorded hundreds of Millions of searchers concerns and interests, reflected the trends of their behavior and provided essential data basis for the study of macro-economic issues. This paper established a concept frame based on commodity market and equilibrium price theory, revealed a certain correlation and lead-lag relationship between web search data and consumer price index (CPI). Empirical results indicated that there is a co-integration relationship between web search data and CPI. The model was able to obtain a good fit with CPI. Model fitting is 0.978.