The 60 year-old said that some other managers acted as if it "looks like we are in a business where the quality is to lose money" but insisted that although his philosophy was to behave in a "safe way" he was also not afraid to spend big if he needed to.
"I have the wrong reputation," the Arsenal manager said. "I'm not afraid to spend money. But the job of a manager is not to spend as much money [as he can]. We make a profit because we don't spend – simple as that.