Commercial sexual exploitation of children (CSEC) is a commercial transaction that involves the sexual exploitation of a child, or person under the age of consent. CSEC involves a range of abuses, including but not limited to: the prostitution of children (e.g. survival sex, street prostitution, child sex tourism, gang-based prostitution, intra-familial pimping), child pornography (including live streaming sexual abuse), stripping, erotic massage, phone sex lines, internet-based exploitation, and early forced marriage. According to the National Center for Missing and Exploited Children (NCMEC), roughly one out of every five girls and one out of every ten boys will be sexually exploited or abused before they become of age. Terminology The Declaration and Agenda for Action, adopted during the First World Congress against Commercial Sexual Exploitation of Children, held in Stockholm, Sweden, in 1996, formally defines CSEC as: a fundamental violation of children's rights. It comprises sexual abuse by the adult and remuneration in cash or kind to the child or a third person or persons. The child is treated as a sexual object and as a commercial object. The commercial sexual exploitation of children constitutes a form of coercion and violence against children, and amounts to forced labour and a contemporary form of slavery. CSEC is often associated with child trafficking, which is defined as "the recruitment, transportation, transfer, harbouring or receipt of a child for the purpose of exploitation," and a child as any person under the age of 18. However, not all trafficked children are trafficked for the purposes of CSEC. Furthermore, the sexual abuse of child trafficking victims at work may not necessarily constitute CSEC. Likewise, CSEC is also part of, but distinct from other forms of child abuse and child sexual abuse, including child rape and domestic violence. Types Prostitution Child prostitution is the use of a child in sexual activities for remuneration." Prostitution is known as one of the oldest professions. Nearly 80% of adult prostitutes entered the industry between 11 and 14. Prostituted children face risks of damage to their physical and mental health, early pregnancy, and sexually transmitted diseases, particularly HIV. They are inadequately protected by the law and may be treated as criminals. Child sex tourism Child sex tourism refers to tourism by predators for the purpose of engaging in child prostitution. Sex tourism and sex trafficking generate revenue for countries. In some countries, with economies that rely on the exploitation of women