The Civil Sundry Act of 1861 established a competitive open bid system.

Sometimes! Many players agree to use 2NT as an artificial forcing bid in most auctions, whose meaning depends on the context. 2NT is usually more useful as an artificial bid than a limited invitation, especially in competitive auctions.

One advantage to bidding on governmental contracts is the fact that the winning bid will offer the best services for the job. A disadvantage to the process is the fact that bidding may make a business bid too much for the contract.

The future tense of bid is "will bid" or "shall bid."