The wage equation ages lnwa)=d01,E12尽四们2Ed12尽 All parameters depend on apprenticeship status Ability is denoted by ; This affects levels of wages, returns to apprenticeship status(Edi), experience and tenure The match specific heterogeneity is denoted by KiftThe wage equation • Wages • All parameters depend on apprenticeship status. • Ability is denoted by i . This affects levels of wages, returns to apprenticeship status (Edi ), experience and tenure. • The match specific heterogeneity is denoted by ift lnwift ☺0i☺EdiEdi ☺XXi ,Edi ,i☺TTi ,Edi ,i ☺GEdiGt ift #