tutor2u Economics on Instagram: "The J-Curve is a key concept in A-level macroeconomics linking exchange rates to the balance of trade. In this short video, we explain why a currency depreciation can initially make a country’s trade deficit worse before it improves over time. You’ll explore the role of time lags, existing contracts, and low short-run price elasticity of demand for imports and exports. The video also explains why the J-Curve only holds if the Marshall–Lerner condition is met. Ide