Would structure answer as such:Introduction: Define the three key terms (international trade, TNCs and variable access to markets - particularly final one); Introduce main impacts to be covered in essayWould cover positive and negative points as follows, but interlinked rather than independent (case studies in brackets):Positive: Creates skilled employment opportunities (South Korea), reduces global inequality and cultural homogenisation (MacDonald's)Negative: Reduces FDI and deindustrialisation in wealthier countries, with the de-multiplier effect as a consequence (e.g. UK manufacturing employment falling by over 50% from 1983 to 2013), differential access to markets affects LICs, and an increased reliance on exports increases vulnerability (look at a LIC case study)Conclusion: Bring points together and reiterate overarching argument.