When the additional unit of input is 'crowded' in the production, the output is proportionally less and............
When the additional unit of input is 'crowded' in the production, the output is proportionally less and............
Solution
Option 1 -> This occurs at a much later stage when marginal product becomes negative, not when crowding just begins.
Option 2 -> When inputs are crowded, each additional unit contributes less output than the previous one, which is the definition of falling marginal product.
Option 3 -> Average product actually falls or remains constant during crowding, it does not rise.
Option 4 -> Total product may continue to rise during crowding, but at a decreasing rate; this doesn't capture the core concept.
Hence, Option 2: Marginal product begins to fall -> When additional units of input are crowded in production and output is proportionally less, this describes the Law of Diminishing Marginal Returns. The marginal product (additional output from one more unit of input) begins to decline because the fixed factors of production (like land or machinery) become increasingly crowded with variable factors (like labor). Each additional worker has less equipment or space to work with, making them less productive than the previous worker. This is a fundamental principle in production theory that explains why firms cannot indefinitely increase output by simply adding more variable inputs. -> correct
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