st: Fwd: How to interprete dummy variables used for missing values

[Quang Nguyen <quangn@gmail.com>]

Dear All,

My friend has a panel data in the following format:

Year        Investment
1900        . (Missing value)
1930        .
1960        12
1980         .
1990        28
1991        56
1992        35
1993        45
etc.,

Could you please tell me how she can use the dummy variables for this
exercise (regression)? Also, how she can interprete the coeficients
for Investment and the dummy variables?

Thanks so much for your help and Have A Wonderful Day!
Sincerely yours,

Quang
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