Final answer:
The tax burden is distributed based on the relative elasticities of demand and supply; more elastic demand puts more tax burden on producers, and more elastic supply puts more on consumers. Income elasticity of 2 signifies a normal good with a proportional increase in demand as income rises. Specific points of diminishing returns and total output cannot be provided without the corresponding data or production function.
Step-by-step explanation:
The elasticity of demand and elasticity of supply at the equilibrium price and quantity impact the distribution of tax burden between consumers and producers. If the demand is more elastic than supply, producers will bear a larger portion of the tax. Conversely, if the supply is more elastic than demand, consumers will shoulder a larger share. Regarding the income elasticity of 2, this indicates that the good is a normal good, and a 1 percent increase in income leads to a 2 percent increase in the quantity demanded.
As for the determination of diminishing returns with respect to labor, without the specific production function or data points, the exact quantity of labor where returns start to diminish cannot be determined. Similarly, the total output at a certain quantity of labor cannot be ascertained without further information on the production function or output data associated with different input levels.