How comparable are cross-country data on agricultural public expenditures?

Allen, 2015, Agricultural productivity, health and public expenditures in sub-Saharan Africa, Eur. J. Dev. Res., 27, 425, 10.1057/ejdr.2015.38 AU, 2003. Conference of Ministers of Agriculture of the African Union. African Union. Maputo, Mozambique. 〈http://www.diplomatie.gouv.fr/IMG/pdf/04_Maputo-Declaration-2003.pdf〉. AU, 2015. The AU guidance note on tracking and Measuring the levels and quality of government expenditures for agriculture. Comprehensive Africa Agriculture Development Programme. Benin, 2012, Public expenditures and agricultural productivity growth in Ghana, 109 Fan, 2004, Reforms, investment, and poverty in rural China, Econ. Dev. Cult. Change, 2, 395, 10.1086/380593 FAO, 2012, 2012 IMF, 2001 IMF, 2014 Lowder, 2015, Who invests in agriculture and how much? An empirical review of the relative size of various investments in agriculture in low- and middle-income countries, Eur. J. Dev. Res., 27, 371, 10.1057/ejdr.2015.39 Mogues, 2011, The bang for the birr: public expenditures and rural welfare in ethiopia, J. Dev. Stud., 47, 735, 10.1080/00220388.2010.509925 Mogues, 2015, Public investments in and for agriculture, Eur. J. Dev. Res., 27, 337, 10.1057/ejdr.2015.40 Mosley, 2004, Aid, poverty reduction and the ‘New Conditionality’, Econ. J., 114, F217, 10.1111/j.1468-0297.2004.00220.x See, 2015, Improved global cropland data as an essential ingredient for food security, Glob. Food Secur., 4, 37, 10.1016/j.gfs.2014.10.004 Suphannachart, 2011, Research and productivity in Thai agriculture, Aust. J. Agric. Resour. Econ., 55, 35, 10.1111/j.1467-8489.2010.00519.x UN, 2015.Transforming our World: The 2030 Agenda for Sustainable Development. United Nations General Assembly, 21 October 2015.