An adverse supply shock shifts the short-run Phillips curve to the left.

Adverse Supply Shock

An unexpected event that suddenly decreases the supply of a good or service, potentially leading to higher prices and lower output.

Short-Run Phillips

A concept describing the inverse relationship between unemployment and inflation within a short-term period.

Left

Politically, refers to ideologies and movements that typically advocate for social equality, government intervention in the economy to redistribute wealth, and the protection of social welfare programs.