commiss recommend applic inland postal rate mail member state eec postal servic plai import role econom life contribut promot harmoni develop econom activ countri commun connect postal rate consider repercuss public larg view make merger nation econom practic realiti term postal servic member state appli inland postal rate relat case letter exceed gram postcard extens measur member state give rise financi technic problem principl adopt measur enter forc nation level gener adjust postal rate signific polit impact point view increas public awar process build europ illustr commun task quot promot closer relat state belong quot reason pursuant indent articl eec treati commiss recommend member state appli inland postal rate intra commun mail case letter weight step postcard brussel commiss étienn davignon member commiss