. Aggregation is seen to work better for the case of temporal aggregation than for systematic sampling. Still a word of caution is …Maravall and del Riacute;o (2001), analized the time aggregation properties of the Hodrick-Prescott (HP) filter, which … decomposes a time series into trend and cycle, for the case of annual, quarterly, and monthly data, and showed that aggregation …

(cointegration). It will be shown that aggregation does not distort the cointegration relation while some other features of the data … cointegration analysis seems to be robust against various aggregation strategies. -- cointegration ; aggregation ; time series … aggregated observations (see Working (1960)). This paper investigates the effect of aggregation on the relation between variables …