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.
: Samuelson famously merged classical microeconomics with Keynesian macroeconomics, providing a framework to understand both long-term growth and short-term fluctuations. Production Function paul samuelson macroeconomia pdf updated
While the core principles of supply and demand haven't changed, the global economy has. The latest editions of Samuelson’s Macroeconomics include critical updates on: Samuelson taught that Multiplier = 1 / (1 - MPC)