Services inputs and firm productivity in Sub-Saharan Africa : Evidence from firm-level data / Jens Matthias Arnold, Aaditya Mattoo, Gaia Narciso. - Washington : World Bank, 2006. - 15p. : tab. ; 28cm.см.. - (Policy research working paper; 4048). - Bibliogr.: p. 14. - [n.p.][MFN: 14811]
UDC: 334.758 + 338.46](6)
• Mattoo, aaditya; Narciso, Gaia;
Subjects:- წარმოების პროდუქტიულობა; მომსახურება; სამრეწველო ფირმები აფრიკაში;
E 22.973/4 = 334.758/A-76 - Civil Education Reading Hall
Differentiated products and evasion of import tariffs / Beata S. Javorcik a. Gaia Narciso. - Washington : World bank, 2007. - 30p. : tab. ; 27cm.см.. - (Policy research working paper; 4123). - Bibliogr.: p. 24-26. - [n.p.][MFN: 15028]
UDC: 339.543
• Narciso, Gaia. (auth.);
Subjects:- საბაჟო ტარიფები;
E 23.018/4 = 339.543/J-29 - Civil Education Reading Hall