For the Essay, long story short:
Benefits
- A trade surplus is when exports exceed imports, (X-M)^
- It's a componant of AD, net exports ^ therefore AD^
- Creates growth and Reduces Cyclical Unemployment
- It is also a massive injection into the circular of flow
- Explained - one's expenditure is another's income etc.
- Positive multiplier effect may occur
Costs
- Inequality of wealth increases
- Inflation occurs, which ^ price of exports again therefore has no long term affect
Judgement
- Depends where the economy is operating at.
- What type of policy the economy will use - Interest or Supply
Opinion
Trade surplus is good but will be good to use supply policy to address the increase in inflation
If you reckon some are my points are wrong, please tell me
and if you had written different things, please do share!