Differential Association Theory is reflected in the Buds character. This theory appears in the situation whereby Bud makes a visit to Gekko’s birthday and offered him a short interview that pitches stocks. However, Gekko is not impressed. After knowing that Gekko cannot run the business together, a quite desperate Bud offers him some ideas about Bluestar and from there Bud learns in casual talk from his dad (Canby & Vincent, 1987). Gekko informs Bud that he was is going to make a decision of it. Bud is very discouraged and he comes back to the office where he meets Gekko orders an item form Bluestar stock then considers one of Bud’s customers (Elbert & Roger, 1987).