I'd recommend renaming this to "Show HN" since it appears to be your own. FWIW, it's kind of fun considering how simple it is -- it feels like there's a kernel of a great game here. I found AdVenture Capitalist to be pretty addictive TBH.
- Boom 10 years - Recession 5 years
- Initial property price, rounded current price in city center for 2bdr in each city. Hong Kong is a little bit too expensive but I currently live there and it's so expensive that it had to be exagerated.
- The 20% you need to buy and 40 year mortgage is how the property sector was working until 2008 in my hometown, Barcelona, before the recession.
- Mortgage rate is 3%
- Rent you receive is around 7% of property value annually
- Inflation is +4% annually during boom and -6% during recession
- Savings return is around 1% annually
- owned property devaluation happens during 15 years until it reaches a minimum and then keeps up with recession/boom cycles
An ultra-TL;DR set of hints:
- read the FAQ at https://news.ycombinator.com/newsfaq.html
- read the formatting help at https://news.ycombinator.com/formatdoc (I'm guessing https://news.ycombinator.com/item?id=10411471 was supposed to be a bullet-point list)
- "self-posts" here are marked here by prepending to the title, typical types are "Show HN: ", "Tell HN: " and "Ask HN: "; this is all community conventions, although properly marked Show and Ask posts will show up on the lists linked in the top bar
- if you like to participate in HN discussions, you may find http://hnnotify.com/ handy
Enjoy your stay! :).