This is a simple premise, that I think could yield a lot of interesting interactions - especially in areas that wouldn't be obvious straight away.
In a current-day Earth, what (if any) large-scale knock-ons would reasonably happen if somebody bought and destroyed, all available/traded apples?
That is, a multi-billionaire decides to buy-out, as rapidly as possible, every single apple that is being traded and every apple future on the stockmarket. (Note, they do not buy all apples currently on stock in shops, street-markets or grown in people's homes - they are focused on the global-scale apple trades, and bulk shipments of apples).
They can be assumed to have just-enough money to achieve their goal for one year, noting that at current prices the apple export business is estimated at around $8.3B
The kinds of implications I'm looking for are large-scale - especially with chain events that would reasonably be caused by this event. For example, the loss of medicine that is reliant on apples (if any exists), war breaking out if there is a reasonable argument for it (apple production is not spread evenly across the globe), or the loss of some related industry that also causes other issues (e.g. loss of plastic = loss of single-use needles for vaccines, is there a similar situation for apples?)
Answers should be backed up where possible, with examples of previous historical shortages of a single commodity.