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Joined 3 years ago
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Cake day: July 20th, 2023

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  • Currently, large corporate landlords are willing to let housing units sit empty vs letting market rates drop. A company with 500 units makes the same amount leasing 400 units at $1500/mo as they would leasing 470 units at $1300/mo and they have less overhead. The realpage software lets them coordinate with all the other corporate landlords without direct communication.

    The reason I think this policy would help renters is by making vacant units significantly more expensive and pushing corporate property managers to actually compete rather than sit on vacancies.


  • I think I’d rather see this adressed on the property tax side with a homestead tax exemption. Let counties and municipalities significantly raise property tax rates then offer homestead tax rebates to the primary resident. Maybe even offer a monthly rebate to match rent/mortgage payments. Rent would go up, but the rebate should match the rent increase.

    This would make empty units, short term rentals, and vacation home more expensive to hold on to compared to being pccupied by a long term resident. This would also let each region decide on the ratio of occupied vs unoccupied net property tax rates to dial in what works for them. A coastal community might have a much different equilibrium point than a suburb to a big city for example.

    A lot of areas already have homestead exemptions for seniors and low income residents, so it doesn’t even require much in terms of new legal frameworks.














  • Are you familiar with the difference between polar (r, theta) coordinates and cartesian (x,y) coordinates? Parabolas are the solution to gravity that is uniform no matter where you sample. It assumes that gravity points in the same direction with the same magnitude no matter where you are. In this model, gravitational acceleration is always 9.81 m/s^2 in the -y direction. That is a reasonable simplification for things that are at the human scale constrained to near the earth’s surface. Deviations from air resistance will matter far more than errors stemming from that assumption anyway.

    Conic sections are the solutions to gravity that is between two objects where the force is along the line between the center of mass of both objects and the strength is inversely proportional to the square of separation. Now you need polar cpordinates and the direction of gravity changes as things move around. This works pretty well for orbits around the earth and orbits around the sun, because the earth is so much more massive than sattelites that orbit it, and the sun is so much more massive than things that orbit it. If you need really precise orbit trajectories, ellipses aren’t truly accurate either. You need to account for all the orbiting bodies in the system. The 3-body problem famously doesn’t have purely analytical solutions, and you need to resort to numerical methods to calculate trajectories.

    So both solutions come from simplified mathematical models. Despite being simplifications, their predictive power is actually very goood. However, like you are intuiting, it’s important to know when those simplifying assumptions lead to errors that start to become important. It’s hard to come up with a particular threshold for when you need to switch from one model to another, because it really depends on how much accuracy your application needs.