False.
Expansions of long-run aggregate supply (LRAS) indicate an increase in the economy's productive capacity and potential output. This usually results from factors like advancements in technology, increases in the labor force, or improvements in capital stock. When the LRAS expands, it can lead to economic growth without causing inflation, as the increase in supply helps to meet demand. Inflation becomes a concern when aggregate demand rises faster than the economy's capacity to produce goods and services.