This thesis deals with co-operation between municipalities viewed from the perspectiveof the small municipality. It poses two questions: How and why doessmall municipalities co-operate? and Which is the place of the small municipalityin a larger organization?. To examine this three Scanian municipalities have beenstudied and one Norwegian municipality is used to provide a perspective on theSwedish discussion.Four theoretical topics guide the thesis. Firstly the core values of municipalities;democracy, autonomy and efficiency.