This document discusses two types of joint ventures under German law: cooperation agreements and equity joint ventures. Cooperation agreements involve parties maintaining autonomy while pursuing short or long-term projects together through contractual obligations. Equity joint ventures form a company where parties transfer powers and rights, share profits and losses, and intend the venture to be long-lasting. Both types of joint ventures require addressing contractual issues like contributions, governance structures, intellectual property, financing and termination. They are also subject to competition law restrictions if turnover thresholds are met.