1. The principal-agent problem in development assistance and its negative impact on entrepreneurship: Time for new approaches. ATDF (African Technology Development Forum;P Aerni;Journal,2006
2. A new approach to deal with the global food crisis;P Aerni;ATDF Journal,2008
3. What is sustainable agriculture? Empirical evidence of diverging views in Switzerland and New Zealand;P Aerni;Ecological Economics,2009
4. Stakeholder attitudes towards GMOs in the Philippines, Mexico and South Africa: The issue of public trust;P Aerni;World Development,2006
5. Nostalgia vs. pragmatism? How attitudes and interests shape the term sustainable agriculture in Switzerland and New Zealand;P Aerni;Food Policy,2009