在利用并购的机会，让他们记住有关的合作伙伴的质量是很重要的（Tsui et al，2014）。为了处理威胁般的意想不到的问题，他们可以决定从所有部门的人应该有足够的能力来处理各种问题建立一个急救专家成员的管理团队。因此，所有内部和外部因素都直接影响到经理们所作的决定。
Threats: It is very important for the airport to understand the threats so that they could handle them within time. The biggest threat would be from the upcoming competitors which would also increase the market competition. The other possible threats for Auckland International Airport could be rise in the price of raw materials. The rise in price would lessen the margins in profit. The rise in the labor cost could also be one of the threats. An airport is a place which deals with different people and lots of processes; hence it is always vulnerable to face several unexpected issues and problems (Hollensen, 2015). One of the other threats could be the changes in Government regulations, as it would require changes in the current functioning procedures of the airport.
Influence on the decisions: There is no doubt in the fact that the internal and external factors play a very significant role in decisions taken by the mangers. While making the decisions the managers need to keep all the factors into consideration. For example while planning for the growth of the airport, now it is important for the decision makers to keep in mind about the weakness of the airport. They must plan something towards research and development department in order to make sure that the airport would be able to handle the upcoming threats like tough competition, rise in price etc.
While making use of an opportunity of mergers and acquisitions, it is important that they keep in mind about the quality of the partner (Tsui et al, 2014).In order to handle the threat like unexpected problems, they could take a decision to establish an emergency management team of expert members from all the departments who should be capable enough to handle all kinds of problems. Hence all the internal and external factors have got a direct impact on the decisions taken by the managers.