Final answer:
The major reason for allowing Coca-Cola billboards at a prominent historical site is the influence of large advertising budgets and the ability of established brands to discourage competition.
Step-by-step explanation:
The major reason for allowing the Coca-Cola billboards at a prominent historical site like the Piazza San Marco in Venice is likely due to the influence of large advertising budgets and the ability of established brands to discourage competition.
In some cases, companies like Coca-Cola can spend more on promotional budgets than their competitors, making it difficult for new companies to launch successful products. This helps to establish an advertising dominance, allowing Coca-Cola to place their billboards in historically significant locations such as the Piazza San Marco.
Additionally, companies like Coca-Cola often bring their advertising into public schools and sponsor sports fields or tournaments, making it common to see their advertisements in various public spaces.