Evaluate the effectiveness of policies implemented in California for homelessness. I would like to include information covering the listed policies.
These include the Housing First Initiative, prioritizing permanent housing without preconditions; Homelessness Prevention Programs, which offer rental assistance and eviction prevention services; Supportive Housing Programs, combining affordable housing with supportive services like mental health treatment and job training; Affordable Housing Development Initiatives, increasing the supply of affordable housing units; Rapid Rehousing Programs, providing short-term rental assistance; Emergency Shelter Programs, offering temporary housing and basic services; Transitional Housing Programs, which assist in transitioning to permanent housing; and Mental Health and Substance Abuse Treatment Initiatives, expanding access to essential services. 
Thank you.