When Wimbledon’s Centre Court has the legal maximum number of 15,000 spectators, watching a match there is non-rival because so many people are watching it

A tennis racket is non-rival, because one person can use it today while another can use it tomorrow

All motorways are excludable, because people could be charged tolls for using them

National Health Service hospitals are non-excludable, because patients are not charged for using them

Both 1 and 2

1 only

2 only

Neither 1 nor 2

The fish may be driven to extinction

The efficient yield may be more than the maximum sustainable yield

More boats may fish in it than are needed for the maximum sustainable yield

Fewer boats may fish in it than are needed for the maximum sustainable yield

1 and 2 and 3

1 and 2 only

1 and 3 only

2 and 3 only

Investing in pension schemes may be regarded as a merit good because many people underestimate the need to save for retirement.

Controlled substances may be seen as demerit goods because people may become addicted to them, despite the damage to their health

If healthcare was provided by private suppliers, and people financed it by taking out private insurance, then unhealthy people might end up facing the highest premiums

It is fair for students to meet the full cost of higher education, because they get all the benefits