It is very hard to prove a hypothetical context that if we did not do something things would be worst. However an example from the USA In 2009 the Federal Reserve cut interest rates by 1.75% but lags of monetary policy delays its effects. The solution was for the US Treasury to mail out $100 billion worth of checks to working households .If past experience is any guide, at least $59 billions of this funds will be spent. (consumers have a high propensity to consume)- which together with multiplier effects will add 3% to the annualized growth rate in the third quarter of the year. if extended unemployment insurance or food stamps measures are added in the senate the macroeconomic benefits would be somewhat larger. We will eventually need to pay back the money but the extra year of lower unemployment and higher out put will put us in a better position to do so, (brookings)
Of course the senate control by the Republicans might stop some of this, But enough might get through to increase employment in the USA as present figures indicate,