Describe the law of diminishing returns means and what happens when it sets in

definition of marginal costs

what are the long-run average costs and what influence would short curves have on it

what are the barriers to entry into the UK energy market?

how does the UK energy market differentiate in terms of marketing and special offers?

What happens if one of the UK energy suppliers drops its prices? What if they all raise prices collectively - what this be called, and what can the government do about this

Describe the Satisficing behavior theory