La dimension très spéculative du marché immobilier peut avoir une influence sur les prix voire être en partie à l'origine d'une crise mondiale comme la crise de 2007, lorsqu'elle aboutit à la constitution d'une bulle immobilière, dont l'importance peut être aussi grande que celle des bulles financières et dans certains cas se conjuguer avec une bulle financière ou dans d'autre cas être cause d'un krach financier international.

The other category of behavior (the hoverers) uses a very different strategy that relies on the inherent limitations of the patroller strategy. Females won't have copulated with a patroller if they weren't found before emerging, or if they departed while the male that found them was fighting off a rival. The hoverers will wait either near plants that are close to emergence areas, regardless of whether the plants are flowering, or at flowering trees and shrubs well away from the emergence areas. These bees will hover anywhere from a few centimeters to eight meters in the air. Since patrollers are generally looking at the ground to find emergence areas, hoverers have less competition over escaped females. Those that are close to the emergence areas are able to quickly spot any females that got away from the patrollers. Male bees that are away from emergence areas stake out flowering plants in the hope that virgin females will arrive seeking food. Also, low-emergence areas are less likely to be patrolled, and thus, more females emerge without copulating.[9]

Real estate brokers are subject to the Real Estate Brokerage Act and must comply with various measures to ensure your protection: they must meet the requirements of the Organisme d’autoréglementation du courtage immobilier du Québec (OACIQ), contribute to the Real Estate Indemnity Fund and hold professional liability insurance. They are responsible for the real estate transaction.