+------------+-------------------+
| Grunfeld   | R Documentation   |
+------------+-------------------+

Grunfeld Investment Data
------------------------

Description
~~~~~~~~~~~

a panel of 10 observations from 1935 to 1954

*number of observations* : 200

*observation* : production units

*country* : United States

Usage
~~~~~

::

    data(Grunfeld)

Format
~~~~~~

A dataframe containing :

firm
    observation

year
    date

inv
    gross Investment

value
    value of the firm

capital
    stock of plant and equipment

Source
~~~~~~

Moody's Industrial Manual, Survey of Current Business.

References
~~~~~~~~~~

Greene, W.H. (2003) *Econometric Analysis*, Prentice Hall,
`http://www.prenhall.com/greene/greene1.html <http://www.prenhall.com/greene/greene1.html>`_,
Table F13.1.

Baltagi, Badi H. (2003) *Econometric analysis of panel data*, John Wiley
and sons,
`http://www.wiley.com/legacy/wileychi/baltagi/ <http://www.wiley.com/legacy/wileychi/baltagi/>`_.

See Also
~~~~~~~~

``Index.Source``, ``Index.Economics``, ``Index.Econometrics``,
``Index.Observations``,

``Index.Time.Series``
