An external constraint exists when the system can produce more than the market will bear.

Without that external constraint we would have been too lazy to do it ourselves.

In short, choice is narrowed by internal as well as external constraints.

A. Religion, like other external constraints, doesn't keep people from having affairs.

"It's the sort of external constraint that would influence the commission's assessment," he said.

These parents say that their children are free from external constraints and tend to be highly responsive to whatever the child wants at the moment.

They believed in negative liberty which constitutes the absence of external constraints.

Political leaders needed some external constraints to put their houses in order.

Was I getting involved with too many lovers and needing some external constraints to narrow my focus?

Environmental constraints - Which external constraints does this system take as a given?