A good research proposal should: 

• Introduce the revelant concepts, economic agents and/or regulations.

• Clearly state and motivate the research question.

• Describe outcome and main explanatory variable and state data sources.

• Briefly state indented estimation strategy and relevant references if applicable.

• Summarize expected findings and contribution to literature.

For detailed instructions see here: Writing a Research Proposal 

A well-written master thesis tells a compelling story written in a specific order: 

1. Title and abstract

2. Introduction

3. Literature review and contributions

4. Data and Methodology

5.  Findings

6. Conclusion

For detailed instructions see here: Master Thesis Structure