Foreign aid policies vary greatly in their means and ends. Long-term development policies, aiming to promote development and welfare, distinguish from short-term humanitarian policies that respond...Show moreForeign aid policies vary greatly in their means and ends. Long-term development policies, aiming to promote development and welfare, distinguish from short-term humanitarian policies that respond to humanitarian emergency crises. Politicians seem to differ in their preferences, leading scholars to question how these preferences emerge. Existing literature has been focusing on theories of elite competition in explaining why states construct and implement certain policies. However, these theories seem to ignore the concept of political agency, and grant no primacy to the role of ideas and values. This thesis aims to fill this gap by asking how party ideologies influence foreign aid policy preferences. It employs the discursive legitimation model of Van Leeuwen (2008) to analyze Dutch parliamentary debates. Here, it is found that conservative values affect politicians to refer to authorization and rationalization when legitimizing their preferences, while liberal values work through to moral evaluation and story-telling strategies. This confirms that ideas and ideologies do matter for policy preferences.Show less