First of all define the positive and negative impact of stakeholder

Stakeholder is person who can positively or negatively impact the output of the projects.It is very important for an efficient project manager to identify the names of stakeholders during the initiation stage of the projects.can be external and internal both.Let me giveexample of stakeholder both internal or external and they can be the customers, the clients, the project team members, the functional managers, the account managers, the operation managers, sellers, buyers etc.

possitve and negitive stakeholder impacts on EBay Inc

It will be costly if you ignore any of the stakeholder’s expectations and it can hugely impact the project negatively like delay in deliveries. Suppose you need the resources for running the project as planned and if you have managed the expectations of HR manager positively then you will surely get a soft support from your HR manager because you’ve managed his/her expectations at the initial stage and the result can be vice-versa in case you have not managed his/her expectations initially.The project manager should take care of the interests of the stakeholders balancing the requirements of the project.

Calif., eBay Inc. connects millions of buyers and sellers and Sellers.EBay is one of the world’s largest online marketplaces, which allows users to buy and sell in nearly every country on earth; through PayPal, which enables individuals and businesses to securely, easily and quickly send and receive digital payments; and through eBay Enterprise, which enables omnichannel commerce, multichannel retailing and digital marketing for global enterprises in the U.S. and internationally.

Negative Influence

first of all let us explain the negative impact .Financial stakeholders, such as unions and materials suppliers, can use their influence and production to demand greater financial benefit. Contractors can negatively affect the project through time and cost overruns. When a delay is caused by a special-interest group, it can increase the cost of the project by adding the expense of legal proceedings.

High Influence, High Interest

Some stakeholders might have a lot of influence over the project, and also be very interested in the project. It is vital to understand the viewpoints of such stakeholders–specifically what potential objections they might raise. Spend most time on these stakeholders.

High Influence, Low Interest: Stakeholders with high power, but low interest need to be broadly satisfied. They won’t pay attention to the fine print of your project, since they perceive the project as not affecting them. However, they have influence on whether the project will be a success: for example, they may have a vote during the approval process of a project. The goal of your interactions with this type of stakeholdershould be to give them enough information about the project that they will not create obstacles for your project.