New composite indicator for the business tendency survey
Vasyechko Olga ()
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Vasyechko Olga: ERMES, University Paris 2
Economics Bulletin, 2010, vol. 30, issue 4, A32
Abstract:
Short-term surveys provide precious information for economic fluctuations analysis. In short-term surveys like the Business Tendency Survey, most of the questions are qualitative and concern the evolution of different economic factors of the business activity. They provide economic information on the present situation and short-term perspectives. Usually, the respondents have to choose between three possible evolutions: increase (improvement, favourable, level higher than the normal), stability (normal) or decrease (unfavourable, level lower than the normal). The balance of opinion is defined as the difference between the proportion of respondents expressing a positive opinion and the proportion expressing a negative opinion. To analyze these types of surveys, the methods are well standardized and use both the multidimensional approach and time series (scoring, dynamic factor analysis, etc.) In this paper, we propose a new method of calculating a robust composite indicator based on range median statistics, and on a lexicographical order relation of the individual data. A confidence interval is constructed around these statistics. The indicator‘s advantage is a simplicity of calculation in comparison with the Mitchell, Smith and Weale (2004) index, while its effectiveness seems to be of the same order. It was used on a Ukrainian dataset for the construction sector. This procedure can be applied to the surveys that contain correlated ordered qualitative answers.
Keywords: Business Tendency Survey; Time Series; Balance of Opinion; Robust Statistics; Composite Indicators (search for similar items in EconPapers)
JEL-codes: B4 C1 (search for similar items in EconPapers)
Date: 2010-11-08
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