So the precise effects of all this spending data are complicated.
The precise effects of the measure cannot be calculated without knowing each team's financial details and each owner's tax situation.
The precise effects of climate change on precipitation are still a source of debate and uncertainty.
Greg Barrow, spokesman for the WFP's London office, said the precise effects of the suspension would be hard to gauge because refugees' circumstances varied from country to country.
The precise effects of folate supplementation on cardiac morphogenesis are unclear, so it is important to corroborate this hypothesis with evidence from clinical and population-based studies.
He defined psychogeography as the study of the precise effects of geographical surroundings on the emotions and behavior of individuals.
Little is known about the precise effects of smoke inhalation on animals but the lungs of animals are similar to those of humans, so it is expected to make them sick and unable to feed.
Carl Emmerson, IFS deputy director and an author of the report, said: "The precise effects of leaving the EU on the British economy and hence the knock-on impact on the public finances is uncertain.
Another might be the performance of the referee Craig Joubert, which is about as easy to predict as the precise effects of climate change.
While the precise effects of these phenomena remain uncertain, Dr Kolk and his team have shown (if their models are correct) that big families will soon be back.
Much evidence indicates that emotion enhances memory, but the precise effects of the two primary factors of arousal and valence remain at issue.
