Closure

This page shows you the current closure (list of exogenous variables). The closure is stored in part of the experiment file and is loaded automatically when you load an EXP file.

You can edit the closure directly if you know the GEMPACK syntax for doing this.

Occasionally, you may use the menu commands Tools...Load Closure File and Tools...Save Closure File to save the current closure or to replace it with other closures that have been stored on disk.

See also Endogenous and Exogenous Variables and Load and Save File Dialog

If you choose to edit the closure directly, please bear the following in mind:

The simplest way of specifying a closure is to list the exogenous variables. A list of exogenous variables is built up with one or more statements of the form exogenous <list> ;, as in, for example,

exogenous p_cr p_a0 ;

There can be several such statements. It is a good idea to start each such exogenous ; statement on a new line.

You should put a statement

rest endogenous ;

at the end to indicate that the rest of the variables are endogenous. [Component numbers and components as arguments are allowed in exogenous <list> ; statements following the usual GEMPACK Command file syntax.]

RunGTAP expects (but does not force) the closure to be specified as above (ie, using only exogenous and rest endogenous keywords). However closures can be set up in GEMPACK Command files in various ways (for example, by using the endogenous and swap keywords, or by modifying the closure stored on an Environment file). For details, see the GEMPACK documentation. You can specify the closure in RunGTAP in any way which is allowed within GEMPACK.

How you specify the closure affects how the drop-down list of variables to shock on the Shocks page is formed. If your closure is simply a list of exogenous variables, only these variables will appear in the drop-down list. Otherwise, all variables of the model (even ones which are endogenous) will appear in that list, and it is your responsibility not to attempt to shock an endogenous variable.

URL of this topic: www.copsmodels.com/webhelp/rungtap/hc_closure.htm

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