The table shows National Income (Y), Consumption (C), Investment (I), Exports (X) and Imports (M) for 2016 and 2017 - Leaving Cert Economics - Question 8 - 2018

To find Net Exports (NX) in 2017:

First, we need to determine the level of Imports (M). Using the overall equation:

$150,000 = 100,000 + 30,000 + (120,000 - M)$

Solving for M gives: $M = 100,000$

Now, we can find Net Exports:

$NX = X - M = 120,000 - 100,000 = 20,000$

Savings (S) can be calculated using:

$S = Y - C$

Substituting the known values for 2017: $S = 150,000 - 100,000 = 50,000$

The Multiplier (MUL) can be calculated as:

Using Method 1:

MPC = rac{AC}{ riangle Y}, ext{ where } AC = 20,000 ext{ and } riangle Y = 50,000 Therefore, MPC = rac{20,000}{50,000} = 0.4 Also, for the MPM: MPM = rac{DM}{ riangle Y}, ext{ where } DM = 10,000 So, MPM = rac{10,000}{50,000} = 0.2 Now, calculate MPS: $MPS = 1 - MPC - MPM = 1 - 0.4 - 0.2 = 0.4$ Then, the Multiplier is:

MUL = rac{1}{MPS} = rac{1}{0.4} = 2.5