The economy relies extensively on the entrepreneur and the constant undulation of creativity and collapse of new ventures. But even as a majority fail, they are replaced by newer, more advanced enterprises. The process, because of this uncertain and variable characteristic, gave further reason to avoid entrepreneurship in economic models. Indeed, because of its probabilistic nature the topic is not easily factored into the structured calculations preferred by neoclassicists since the results would likely be too indeterminate and predictions would not be so easily made.