> "which means that it's also decreasing consumption and/or investment by an equivalent amount"
I am not sure about this, because the net amount is still new money in the economy, being spent for services, saved, or invested. Yes, a typical person is paying more taxes, but they will have net more money to spend or save: $BI - [Tax on $BI] is still > $0.
As a further example, let's say there is a salon that employs 2 beauticians before BI. After BI, they see an increase in business, and now can employ 3 beauticians, increasing employment by 1. The 3rd beautician is now paying taxes that were not paid before. Those taxes in part can help fund the BI.
I am not sure about this, because the net amount is still new money in the economy, being spent for services, saved, or invested. Yes, a typical person is paying more taxes, but they will have net more money to spend or save: $BI - [Tax on $BI] is still > $0.
As a further example, let's say there is a salon that employs 2 beauticians before BI. After BI, they see an increase in business, and now can employ 3 beauticians, increasing employment by 1. The 3rd beautician is now paying taxes that were not paid before. Those taxes in part can help fund the BI.