Bowley's law, also known as the law of the constant wage share, is a stylized fact of economics which states that the wage share of a country, i.e., the share of a country's economic output that is given to employees as compensation for their work (usually in the form of wages), remains constant over time.[1] It is named after the English economist Arthur Bowley. Research conducted near the start of the 21st century, however, found wage share to have declined since the 1980s in most major economies.