> Theoretically, it will increase wages and employment since there will be a lot more money spent, increasing economic activity.
At a macroeconomic level, that money comes from somewhere (generally taxes), which means that it's also decreasing consumption and/or investment by an equivalent amount. You can make the argument that collecting the taxes to fund a program is still desirable in the end, but it's mathematically incorrect to say that it would have a net increase in economic activity.
To put it another way: what would the money be spent on if it weren't collected as tax revenue? Some portion of it would be spent on consumable goods, and the rest would be saved (invested). Money saved is very important to the economy, because that's how society gets access to capital for long-term investments (whether public works projects or private investments).
At a macroeconomic level, that money comes from somewhere (generally taxes), which means that it's also decreasing consumption and/or investment by an equivalent amount. You can make the argument that collecting the taxes to fund a program is still desirable in the end, but it's mathematically incorrect to say that it would have a net increase in economic activity.
To put it another way: what would the money be spent on if it weren't collected as tax revenue? Some portion of it would be spent on consumable goods, and the rest would be saved (invested). Money saved is very important to the economy, because that's how society gets access to capital for long-term investments (whether public works projects or private investments).