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  2. Delta model - Wikipedia

    en.wikipedia.org/wiki/Delta_model

    The delta model is a framework for strategic management that focuses on customer value, system lock-in, and best product. It was developed by Dean Wilde and Arnoldo Hax and challenges the conventional wisdom of competition and product-centric thinking.

  3. North American XB-70 Valkyrie - Wikipedia

    en.wikipedia.org/wiki/North_American_XB-70_Valkyrie

    The XB-70 Valkyrie was a supersonic strategic bomber prototype for the US Air Force in the 1960s. It was designed to replace the B-52 and B-58, but was cancelled due to the advent of ICBMs and the low-level penetration role.

  4. Black–Scholes model - Wikipedia

    en.wikipedia.org/wiki/Black–Scholes_model

    In short, while in the Black–Scholes model one can perfectly hedge options by simply Delta hedging, in practice there are many other sources of risk. Results using the Black–Scholes model differ from real world prices because of simplifying assumptions of the model.

  5. Southwest Air's lackluster profit fuels pressure to revamp ...

    www.aol.com/southwest-airs-lackluster-profit...

    Southwest Airlines, the pioneering low-cost carrier, is facing a campaign by an activist investor to overhaul a business model it says is outdated, putting pressure on CEO Robert Jordan and ...

  6. Takeaways from AP's story on Alabama's ecologically important ...

    www.aol.com/news/takeaways-aps-story-alabamas...

    Alabama’s Mobile-Tensaw Delta is a more-than 400-square-mile (1,036-square-kilometer) expanse of cypress swamps, oxbow lakes, marshland, hardwood stands and rivers unusually rich in plant and ...

  7. Spoke–hub distribution paradigm - Wikipedia

    en.wikipedia.org/wiki/Spoke–hub_distribution...

    In 1955, Delta Air Lines pioneered the hub-and-spoke system at its hub in Atlanta, Georgia, [3] in an effort to compete with Eastern Air Lines. In the mid-1970s FedEx adopted the hub-and-spoke model for overnight package delivery. After the airline industry was deregulated in 1978, several other airlines adopted Delta's hub-and-spoke paradigm.

  8. AOL Mail

    mail.aol.com

    AOL Mail offers secure and personalized email with features like AOL Mail, news, and weather for free. You can also access your email on the go with an iOS & Android app and get help from experts.

  9. Delta Air Lines - Wikipedia

    en.wikipedia.org/wiki/Delta_Air_Lines

    Delta Air Lines is the oldest operating airline in the United States and a founding member of the SkyTeam alliance. It serves 325 destinations in 52 countries with a fleet of 989 aircraft and employs over 100,000 people.