## How to input equations in 2sls with 4 equations?

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Joined: Tue Nov 20, 2018 11:15 pm

### How to input equations in 2sls with 4 equations?

Hello,
I need to do 2sls analysis with these equations :
gdp = ce + ge + i + x +kgdp
ce = ce(-1) + gdp
i = r + gdp
x = ex + ce + kgdp
Anyone can explain to me how to input the equations and instrument variables? I know that I need to put the 1st equation in the equation box and the rest in the instrument but I can't seem to enter more than 1 line of equation in the instrument box. Any help and advice is appreciated. Thank you.

EViews Gareth
Fe ddaethom, fe welon, fe amcangyfrifon
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Joined: Tue Sep 16, 2008 5:38 pm

### Re: How to input equations in 2sls with 4 equations?

You need to use a System object, not an Equation object.

startz
Non-normality and collinearity are NOT problems!
Posts: 3573
Joined: Wed Sep 17, 2008 2:25 pm

### Re: How to input equations in 2sls with 4 equations?

Or, since TSLS is a single equation estimator, just run four estimates.

Posts: 5
Joined: Tue Nov 20, 2018 11:15 pm

### Re: How to input equations in 2sls with 4 equations?

EViews Gareth wrote:You need to use a System object, not an Equation object.

It gives me syntax error or that the first equation is incomplete everytime I use system

Posts: 5
Joined: Tue Nov 20, 2018 11:15 pm

### Re: How to input equations in 2sls with 4 equations?

startz wrote:Or, since TSLS is a single equation estimator, just run four estimates.

4 estimates? Can you explain it in more detail?

startz
Non-normality and collinearity are NOT problems!
Posts: 3573
Joined: Wed Sep 17, 2008 2:25 pm

### Re: How to input equations in 2sls with 4 equations?

startz wrote:Or, since TSLS is a single equation estimator, just run four estimates.

4 estimates? Can you explain it in more detail?

tsls y1 c x1 @ c z1
tsls y2 c x2 @ z1
tsls y3 x x3 @ z1
tsls y4 c x4 @z1