# What is the formula for marginal rate of technical substitution?

## What is the formula for marginal rate of technical substitution?

Marginal rate of technical substitution is equal to ∆K/∆L which is exactly the slope of the above plotted isoquant. You can see that the rate at which capital is substituted by labor decreases as we move along the isoquant from y-axis to x-axis. It is why the curve gets flatter as it approaches the x-axis.

**What do you mean by MRTS LK )? How can you figure it out?**

Formula: MRTSLK = ΔK. ΔL. It means that the marginal rate of technical substitution of factor labor for factor capital (K) (MRTSLK) is the number of units of factor capital (K) which can be substituted by one unit of factor labor (L) keeping the same level of output.

**What does the MRTS measure?**

The marginal rate of technical substitution (MRTS) is an economic theory that illustrates the rate at which one factor must decrease so that the same level of productivity can be maintained when another factor is increased.

### What does MRTS 4 mean?

What does a MRTS=4 mean? MRTS is the amount by which the quantity of one input can be reduced when the other input is increased by one unit, while maintaining the same level of output. If the MRTS is 4 then the one input can be reduced by 4 units as the other is increased by one unit and output will be the same.

**Why is MRTS negative?**

Properties of MRTS: 1. If both marginal products are positive, the slope of the isoquant is negative. If the MRTS also diminishes as the quantity of labor increases along an isoquant, the isoquants are convex to the origin.

**Is MRTS positive or negative?**

Since the curves slope downwards, if ΔK is positive then ΔL must be negative, and vice versa. That means that MRTS is a negative number.

#### What does a MRTS 4 mean?

**What does constant MRTS mean?**

The marginal rate of technical substitution (MRTS) can be defined as, keeping constant the total output, how much input 1 have to decrease if input 2 increases by one extra unit. In other words, it shows the relation between inputs, and the trade-offs amongst them, without changing the level of total output.

**Is the MRTS positive or negative?**

## What is MRTS LK?

The MRTS of labour for capital (MRTSLK) can be defined as the number J of capital units that a producer is willing to sacrifice for an additional unit of labour, maintaining the output level. ADVERTISEMENTS: The MRTSLK is also equal to MPL/MPK. As the firm moves down an isoquant, the MRTSLK diminishes.

**How to calculate MRTS?**

To calculate a marginal rate of technical substitution, use the formula MRTS (L,K) = – ΔK/ ΔL, with K representing cost and L representing labor input. Note that while this looks significantly like the marginal rate of substitution formula, the value is multiplied by -1 (indicated by the negative sign in front of the division).

**Does Mr equal MC in economics?**

In economics, the point of profit maximizing and loss minimizing is called MR=MC. This point is where marginal revenue equals marginal cost, meaning that cost does not exceed revenue and revenue does not exceed cost.

### What does marginal theory assume in economics?

Marginalism is a theory of economics that attempts to explain the discrepancy in the value of goods and services by reference to their secondary, or marginal, utility. The reason why the price of diamonds is higher than that of water, for example, owes to the greater additional satisfaction of the diamonds over the water.