Here one encounters the fundamental principle of reciprocity in relationships — it is in the process of interaction, of giving and receiving, that one's basic needs are satisfied. (religion-online.org)
There are conflicting The Golden Rule (which can be considered a law of reciprocity in some religions) is the principle of treating others as one would wish to be treated. (myintimcity.com)
For example, annual reports from the EU Chamber of Commerce in China and the American Chamber in China have pointed out the lack of reciprocity in China, while Western markets have remained fairly open. (carnegieendowment.org)