This document defines unemployment and discusses its causes, effects, and types. It states that the main causes of unemployment include a defective investment system, technology, poverty, education systems, slow economic development, high population growth, and lack of opportunities. The effects are mental stress, low self-esteem, political issues, crime, loss of skills, suicide, and increased poverty. There are four types of unemployment: frictional due to job transitions, seasonal in industries like farming, structural from long-term market changes, and regional when structural impacts local areas.