The Isoquant-Isocost CombinationThe isoquant represents what can be produced while the isocost curve defines the cost and budgetary limits ofproduction. The optimum resource combination for a given plant capacity is a least-cost condition. At theoptimum point A, the last peso spent on one resource yields the same marginal product as on the otherresource.The optimum purchase combination is at point A since the given isocost curve corresponds (tangent) to thehighest isoquant and level production capacity that its budget can buy. In the foregoing optimum condition,one resource is as marginally efficient as the other. More use of capital from point A goes beyond the limits ofa fixed labor input and makes both resources inefficient as they com plement each other.Change in Resource Mix/ Change in Relative Resource PriceFigure 45 illustrates how a variation in relative resource prices can change the optimum resource combinationfrom point A. The isocost curve becomes steeper from B to B, as labor becomes costlier while capitalcheapens. Maintain ing resource combination with more of less efficient labor at point A now corresponds to alower output level.Change in Relative EfficiencyOptimally resource combination favors the use of cheap and efficient inputs to maximize production. Thisexplains why industrialized countries use capital-intensive technology to solve their problem of scarce laborresources. The same principle explains why developing countries use labor intensive technology to takeadvantage of their abundant and cheap labor.ProductivityThis section discusses the dynamics of resource effiency as it affects produvtion. Succeeding chapters will alsohighlight its impact on the firm competitiveness and survivalConceptsProductivity is the efficiency and, there fore, the power of inputs to produce. This sec- tion confinesdiscussions to resource inputs which are basic to production. Productivity is measured as output per unit.