Harberger Ads
There are several projects that have adopted the Harberger Tax model. One of these projects is Harberger Ads, which was developed during the ETH San Francisco hackathon https://gyazo.com/fd9838509733e33ec5a0cd3d307f314d. Harberger Ads is an advertising utility that uses Harberger Taxes to set the price of advertising space. In this model, advertising space can be purchased and the tax is paid based on the "property price" that the owner assigns. Each property is sold at the set value, so it is recommended to set a reasonable price. If the price is too low, the property may be unexpectedly purchased. On the other hand, setting a high price will result in paying a high tax.
This model allows property owners to easily monetize their space without being burdened by complex advertising pricing models or contracts, and without having to rely on expensive centralized marketing platforms.
If you are interested, you can find the code for Harberger Ads on the following GitHub repositories:
For more information about the Harberger Tax model and its implementation, you can refer to the conversation titled "Partial Common Ownership/Plural Property: In Conversation with Will Holley, Graven Prest, Kevin Seagraves" .