Ontributions of the Austrian School of Thought

I just need a summary. Please summarize or change the words. I need to write about the Contributions of the Austrian school of economic thought.
1. first summarize the first part of the article (before the propositions). less than half a page if you can, if not, just address the most important points.
2. second is to summarize or CHANGE the words on the propositions section.
LINK: AustrianSchoolofEconomics.html