Simplify the following text for a Grade 12 native English-speaking person.
Original: In 20 April 2003 , chancellor SchrÃ der announced massive labor market reforms , called Agenda 2010 , that among other measures include a shakeup of the system of German job offices , cuts in unemployment benefits and subsidies for unemployed persons who start their own businesses .
Simplified: In April 2003 , chancellor SchrÃ der announced massive labor market reforms , called Agenda 2010 . This included a shakeup of the system of German job offices ( Arbeitsamt ) , cuts in unemployment benefits and subsidies for unemployed persons who start their own businesses .