blue market trading

Blue laws, also known as Sunday laws, Sunday trade laws and Sunday closing laws, are laws restricting or banning certain activities on specified days, usually Sundays in the western world. The laws were adopted originally for religious reasons, specifically to promote the observance of the Christian day of worship, but since then have come to serve secular purposes as well.
Blue laws commonly ban certain business and recreational activities on Sundays and impose restrictions on the retail sale of hard goods and consumables, particularly alcoholic beverages. The laws also place limitations on a range of other endeavors, including travel, fashions, hunting, professional sports, stage performances, movie showings, and gambling. While less prevalent today, blue laws continue to be enforced in parts of the United States and Canada as well as in European countries, such as Austria, Germany, Norway, and Poland, where most stores are required to close on Sundays.In the United States, the Supreme Court has upheld blue laws as constitutional, recognizing their religious origins but citing secular justifications that have resulted, most notably the provision of a day of rest for the general population. Meanwhile, various state courts have struck down the laws as either unenforceable or in violation of their states' constitutions. In response, state legislators have re-enacted certain Sunday laws to satisfy the rulings while allowing some of the other statutes to remain on the books with no intention to enforce them.

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