+---------+-------------------+
| Metal   | R Documentation   |
+---------+-------------------+

Production for SIC 33
---------------------

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

a cross-section

*number of observations* : 27

*observation* : regional

*country* : United States

Usage
~~~~~

::

    data(Metal)

Format
~~~~~~

A dataframe containing :

va
    output

labor
    labor input

capital
    capital input

Source
~~~~~~

Aigner, D., K. Lovell and P. Schmidt (1977) “Formulation and estimation
of stochastic frontier production models”, *Journal of Econometrics*,
**6**, 21-37.

Hildebrand, G. and T. Liu (1957) *Manufacturing production functions in
the United States*, Ithaca, N.Y.: Cornell University Press.

References
~~~~~~~~~~

Greene, W.H. (2003) *Econometric Analysis*, Prentice Hall,
`http://www.prenhall.com/greene/greene1.html <http://www.prenhall.com/greene/greene1.html>`_,
Table F6.1.

See Also
~~~~~~~~

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