The 1 reference context in paper Christopher F. Baum, Mustafa Caglayan, Neslihan Ozkan (2002) “Sectoral Fluctuations in U.K. Firms' Investment Expenditures” / RePEc:boc:bocoec:520

  1. Start
    We first examine, in Table 2, the contemporaneous correlation of growth in investment expenditures for ten basic sectors. For 4There were no rejections of the KPSS test’s null hypothesis of stationarity
    (Kwiatkowski et al., 1992)
    at any reasonable level of significance. 3 any sector, lack of significant correlation of its investment spending with that of other sectors may be considered as evidence against comovement of investment rates across sectors.
    (check this in PDF content)