* This is enforced by only permitting certain sellers to accept necessity-dollars, and only on certain transactions.<p>there are so many reasons why this wouldn&#x27;t work.  The whole point of UBI is that you are not creating a judgemental system by which certain products are or are not reified by the system.  Would tampons be covered by UBFS?  Let&#x27;s say then we allow for UBFS to cover female menstrual products.  Would cups then be covered?  Why or why not?  How would you validate a product as being &quot;for a given use&quot;?  How much political maneuvering would be required to get a permit for a product?<p>* inelastic demand (as found by the BLS during CPI calculation)<p>Pray tell how does one measure demand elasticity[0]?  And if you&#x27;re entrusting the BLS to do this, will they apply fudge factors?  Why or why not?  Who gets to influence the BLS to get the &#x27;stats right&#x27; on their<p>* You can&#x27;t tax or fine anyone in necessity-dollars<p>one word:  Arbitrage.<p>[0] usually a merchant does this by dicking around with the price.