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st: Interpretation of transition probabilities
From
"Pavlos C. Symeou" <[email protected]>
To
[email protected]
Subject
st: Interpretation of transition probabilities
Date
Tue, 28 Dec 2010 21:26:54 +0200
Dear Statalisters,
Season's greetings.
I am working on the modeling of an ordered variable "projects"
which takes values from 0-6 denoting the number of construction
projects undertaken by a construction firm during a year. I want to
tell a few things about the probability of change in the number of
projects undertaken by the sample firms over time. I have
observations for 100 firms over the period 1991-2008 and I use the
-xttrans- command which gives me the following table. As far as I
understand, referring to the second column, 90% of those firms with
zero projects in one year have a chance of 16% to get one project
in the next year. What I don't understand is what the last row
"Total" tells.
projects
0
1
2
3
4
5
6
Total
0
90.47
8.76
0.69
0.09
0
0
0
100
1
16.07
70.03
12.97
0.93
0
0
0
100
2
2.07
16.99
69.28
11.52
0.15
0
0
100
3
1.7
2.38
18.37
70.41
7.14
0
0
100
4
1.96
0
3.92
21.57
66.67
5.88
0
100
5
0
0
0
0
11.54
84.62
3.85
100
6
0
0
0
0
0
50
50
100
Total
58.03
22.83
12.3
5.34
1.01
0.45
0.03
100
I hope you can verify my interpretation and enlighten me about the
last row.
Best wishes and happy new year,
Pavlos
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