Supply-side shocks refer to unexpected events that suddenly change the supply of goods and services in an economy, often leading to fluctuations in prices and output. These shocks can stem from various sources, including natural disasters, geopolitical events, or sudden changes in regulations that affect production capabilities. Understanding how these shocks impact the economy is crucial for analyzing the effectiveness and limitations of monetary policy, as they can disrupt supply chains and influence inflation rates, making policy responses more complex.