Samuelson taught that Multiplier = 1 / (1 - MPC) . An updated PDF will apply this to COVID-19 stimulus payments (2020-2023). Compare the 2008 stimulus multiplier (≈1.5) to the 2021 stimulus (≈2.3). This is the "updated" analysis you need.
Do you need a (like fiscal policy or international trade)? paul samuelson macroeconomia pdf updated
The following report summarizes the status and content of Paul Samuelson’s Macroeconomics Samuelson taught that Multiplier = 1 / (1 - MPC)