FOC in Economics Explained | MR = MC | Numerical Problem & Solution | Aritro Ghosh

In this video, we explain the First-Order Condition (FOC) in Economics, focusing on the important rule MR = MC (Marginal Revenue = Marginal Cost) and how it helps firms maximize profit. We begin with a simple real-life example of Roy’s Chai Stall to understand marginal revenue and marginal cost. Then, we explain the FOC and Second-Order Condition (SOC), followed by a step-by-step solution to the Niloy Corporation problem. 📚 Topics covered in this video: What is the First-Order Condition (FOC)? Marginal Revenue (MR) and Marginal Cost (MC) Profit maximization: MR = MC Second-Order Condition (SOC) Graphical explanation of FOC and SOC Revenue maximization: MR = 0 Niloy Corporation numerical problem Step-by-step calculation of price, output, total revenue, total cost, and profit Difference between revenue maximization and profit maximization 📌 Important formulas: Profit = Total Revenue − Total Cost FOC for profit maximization: MR = MC Condition for revenue maximization: MR = 0 Final answer for Niloy Corporation: Optimal output (q*) = 50 units Optimal price (p*) = 35 Maximum profit (π*) = 1,250 🎓 Course: Principles of Economics 📖 Chapter 4: Theory of Profit & Market Structure This video is intended for economics students who want to understand the concepts and practise numerical problems for exams. If this video helps you, please like, share it with your classmates, and subscribe for more educational content. #Economics #ProfitMaximization #FOC