what do legal barriers include and what do they enable?
Legal barriers include patents, trademarks and copyright. They enable incumbent firms to legally prevent new firms from stealing their ideas and entering their market.
what is dynamic efficiency?
how changing technology improves output potential over time
what is a natural monopoly?
A natural monopoly is when it’s naturally most efficient if only one firm is in the market.
what are the two reasons why natural monopolies like tfl exist?
high sunk costs, huge economies of scale