No admissions officer is going to expect you to write perfect English. Your thoughts are communicative and that is the most important thing of all. The following paragraph does, however, need some work.
The comprehensive social welfare system and advances in welfare policy reform makes Norway very suitable for studying welfare policy. Health Economics is one of the most important elements in Norwegian welfare policy, and the XXX program aims to teach the necessary analytical skills to evaluate complex policy within the health care system. The University of XXX is the only university which offers a program combining economics and social welfare policy in a masterís degree. Moreover, the establishment of XXX University Hospital provides the most up-to-date resource for studying ownership change of medical institutions. Therefore, participating in the program will enable me to develop a solid background in XXX and pave the way for my future research in XXX.