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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/63536
Calculation of the variance in surveys of the economic climate
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Public opinion surveys have become progressively incorporated into systems of official statistics. Surveys of the economic climate are usually qualitative because they collect opinions of businesspeople and/or experts about the long-term indicators described by a number of variables. In such cases the responses are expressed in ordinal numbers, that is, the respondents verbally report, for example, whether during a given trimester the sales or the new orders have increased, decreased or remained the same as in the previous trimester. These data allow to calculate the percent of respondents in the total population (results are extrapolated), who select every one of the three options. Data are often presented in the form of an index calculated as the difference between the percent of those who claim that a given variable has improved in value and of those who claim that it has deteriorated.
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ALCAÑIZ, Manuela, COSTA, Alex, GUILLÉN, Montserrat, LUNA, Carme, ROVIRA, Cristina. Calculation of the variance in surveys of the economic climate. _IREA – Working Papers_. 2006. Vol. IR06/05. [consulta: 15 de gener de 2026]. ISSN: 2014-1254. [Disponible a: https://hdl.handle.net/2445/63536]