There is also a difference between own authority and borrowed authority. Own authority is the education you telegram data have followed and the books you have (possibly) written. Your own merits. Borrowed authority is, for example, the logos you show of customers.
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Already sold 10,000 copies of my book
How Coolbue became successful by using… (customer case)
6. Scarcity
The threat of shortage: we attach more value to things that are scarce or hard to obtain. Collectors have known for a long time: the rarer something is, the higher its value. Or take Booking.com, which played on the feeling of scarcity for years with slogans such as ‘only 1 room left’. Scarcity makes people restless. “Gosh, only 1 room left, then”.
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I so you don’t see this on Booking anymore, but people still know it. Apple also uses this principle by deliberately not having clean email enough stock when launching a new product, which creates long lines that fuel the feeling of scarcity.
Another variant of scarcity is limited time. For example, if a product will soon no longer be available or los indicadores del segmento the offer is only valid for a limited time. In advertising, (the suggestion of) scarcity is often used: gone = gone, while stocks last, limited availability, first come, first served… The fact that we are sensitive to scarcity dates back to the time when a shortage of food could be fatal. Something that is scarce suddenly becomes much more valuable.