A feature common to all these competitive models to which I am taking exception is their exclusion of the entrepreneurial element from the analysis.

But in recent years, as more competitive models have been introduced, that share has dwindled to between 15 and 20 percent.

The old Social Democratic model is completely broken, but the new, competitive model doesn't work very well, either.

Even so, a competitive model can achieve flights of nearly 1 hour.

It is envisaged that there will be over 100 factors to make a competitive model of a race.

But Internet services represent a more open, competitive model.

The subject has been described as concerned with markets that "cannot easily be analyzed using the standard textbook competitive model."

Service, on-time performance, leg room, frequent flier programs, and other factors are often used in this competitive model.

In specific cases, a monopolistic economic model is more efficient than a perfectly competitive model.

It certainly failed by one test, failing to deter Boeing from turning out a competitive model (the 767), and thus dividing the market.