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The fourth principle states that people may respond to incentives . That means that something - the prospective reward can induce a person to take action immediately. Firms will take the costs and the benefits of incentives into consideration when making decision .
The more repayment the firms receive, the bigger revenue the firms gain. In/Under the circumstances , the meat market will go to increase the price to make more profit .


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incitations parce qu'elles prendront des décisions en comparant des
coûts et des avantages. Plus le remboursement que les sociétés
reçoivent, plus les sociétés gagnent revenu. Dans ce cas-ci, le
marché décidera d'augmenter le prix des viandes pour faire le
bénéfice.

The fourth principle says that the person is encouraging a response. That is meant to be and the certain matter lures an action of visual field that person adopts in the award for merit. They will make decision by comparison's expenses and benefit, so the company has been already encouraged. That morely pays to return a company to accept and that more income companies increase a benefit. At this condition, the market will decide to increase the price of meat to earn profits.