Basic:
* The price of gasoline fluctuates based on supply and demand.
* Supply and demand determine the value of a product in the marketplace.
Specific examples:
* The recent drought has caused a sharp increase in the price of corn due to reduced supply and increased demand.
* The popularity of electric vehicles has led to a surge in demand for lithium, driving up prices.
* The rise in the minimum wage can impact supply and demand, potentially leading to job losses and higher prices.
Figurative:
* The relationship between the two companies is driven by a delicate balance of supply and demand, with each needing the other to succeed.
Remember to choose the example that best suits your context and desired meaning.