And the coalition should act now to close down the theoretical argument about fiscal stimulus.

Nevertheless, the theoretical arguments won't go away.

Despite theoretical arguments against the existence of faster-than-light particles, experiments have been conducted to search for them.

Theoretical arguments regarding the relative merits of free market versus mixed economy policies do not always yield a clear conclusion.

Support for the critical period theory stems largely from theoretical arguments and analogies to other critical periods in biology such as visual development.