How do we define an isoquant? What is an isoquant map? What is the slope of an isoquant and what does it tells us? How do we calculate the slope? What are the special cases of isoquant? What does the term isocost means? What is the slope of the isocost? How do we represent the curve mathematically? What does the concept returns to scale means and what are the various types of RTS? What does the long run cost curves demonstrate? How does economies of scale differs from diseconomies of scale