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Problem: While browsing Hacker News, I came across an interesting question: “Where can I live off $1k USD a month?” While housing, food, and entertainment is expensive, this restriction reframed in my head the ways that we conceptualize expenses and housing system structures.


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Solution: This business would replicate other cheap systems at scale through a business that could significantly reduce costs of living. The best formulation was described by Leftium, who commented on hackernews:

I live in Korea. Some months my total expenses are as low as $400 while living comfortably. If I spent $1000 in a month, I spent a lot of money. I'd say my average monthly living expenses are $600-$800. My main expenses are food/entertainment, and I eat out a lot (50% of meals).

Housing is probably the biggest living expense. I take advantage of Korea's interesting rental system called Cheonsae:

Basically, if you put down a huge deposit (like $90,000: 50% to 90% of the value of the property), you don't pay any monthly rent and get the entire deposit back when you move out. My place has a $50 monthly management fee, but that includes high-speed internet. (So I joke that I get free housing with my internet.)

Of course, there is an opportunity cost because that deposit could have generated interest, but I figure the break-even point is 12% APY. (It is possible to lower the deposit by increasing monthly rent.) So it's advantageous to take out a bank loan at 2-4% interest to pay for the deposit.

There is a small risk you won't be able to get your deposit back if the owner mismanages their finances. I believe the Korean government actually guarantees housing deposits up to $50,0000 or so. In Korea, the tenants actually do background checks on the landlords! The minimum deposit is usually $10,000, so landlords usually don't scrutinize tenants.

This was a phenomenal and fascinating idea. Leftium continued describing the system by saying the following:

I believe the system started when there were double digit interest rates (in the 80's?).

Now interest rates are much lower, but Koreans got used to paying $0 rent and anything above that feels like they are being ripped off.

One reason landlords like the system is because they can daisy-chain the purchase of multiple properties. They take the first cheonsae deposit and use it to purchase another property, then use the cheonsae deposit from the 2nd property to purchase a 3rd property, and so on...

Even if landlords don't receive monthly rent, they expect to earn money on the increased value of the property. Cheonsae contracts are normally 2 years, then they can ask for more deposit or sell the property for a profit.

More info: https://en.wikipedia.org/wiki/Jeonse

The bolded statement (using past cheonsae deposits to purchase other properties) is where this business could thrive through a globalized Cheonsae. As described by PR Newswire, “The global real estate rental market is expected to grow from $1727.23 billion in 2020 to $1765.5 billion in 2021 at a compound annual growth rate (CAGR) of 2.2%.”

Monetization: Revenue from investing the “float” received from Cheonsae

Contributed by: Michael Bervell (Billion Dollar Startup Ideas)

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