Explore the basic concept of REITs. Inparticular, make a clear terminological distinction and clear differentiation from other common categories of investment companies.

$-$ Analyze the current market of REITs and how the market is expected to develop from today's perspective.

$-$ REITs can invest in various assets, such as different types of real estate or mortgages. Against this background, distinguish two types of REITs that invest directly in different types of real estate from those whose investment focus is mortgages.

$-$ Discuss the role of REITs in the current real estate market crisis in many European and US countries.

$-$ Summarize your entire discussion.