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In svyset, I would use the following variables:

firm size: having 4 values, 5-24, 25-99, 99-499 and 500+ workers
X_firm: dummy indicating whether the firm has workers using X
X_worker: dummy indicating whether the worker uses X

As I follow firms and workers over time, I have repeated observations with an eid for the firm and pid for the worker.

Thank you in advance!
best regards,
Dimitris




dr. Dimitris Pavlopoulos

Assistant Professor
Vrije Universiteit Amsterdam
Faculty of Social Sciences
dept. of Sociology
De Boelelaan 1081 (visiting address Metropolitan Building, Buitenveldertselaan 3)
1081 HV Amsterdam
the Netherlands

email: D.Pavlopoulos@fsw.vu.nl
tel: +31 (0)20 59 89254

________________________________________
From: owner-statalist@hsphsun2.harvard.edu [owner-statalist@hsphsun2.harvard.edu] on behalf of Steven Samuels [sjsamuels@gmail.com]
Sent: 27 August 2011 00:14
To: statalist@hsphsun2.harvard.edu
Subject: Re: st: SVY question

Dmitris, You have sampling strata formed by the combination of firm size and work arrangement; if there were K size strata, you have 2K sampling strata, yes?  I don't understand your statement "I sample firms in strata defined by the firm size (proportional sampling according to the distribution of the firm size in the whole labour market)". Please provide  detail. Show how you defined the size strata and how you drew the sample (e.g. how many firms per sampling stratum).
Include an example for the  firms with and without X in a single size stratum.  Also, please name the variables you think you might use in the -svyset- statement.

I apologize in advance, but I do not expect to respond further until Monday or later.

Steve


On Aug 26, 2011, at 10:53 AM, Pavlopoulos, D. wrote:

Dear statalisters,

I have a rather complex survey design and I want to use the svy for it. I sample firms and then individuals within these firms stratified according to the firm size and the use of a flexible work arrangement X.

Specifically, I split firms into those using the arrangement X and those that do not use it. Within each group of firms I sample firms in strata defined by the firm size (proportional sampling according to the distribution of the firm size in the whole labour market).

Then, within each firm than does not use the arrangement X, I select a random sample of workers of a fixed size n. Within each firm that uses the arrangement X, I split the workers in those taking up the arrangement and those that do not and I select a random sample of workers within each group so that the total sample of workers in the firm equals n.

How should I define svyset?

I would appreciate your help! Please note that I am using Stata 11.

best,
Dimitris



dr. Dimitris Pavlopoulos

Assistant Professor
Vrije Universiteit Amsterdam
Faculty of Social Sciences
dept. of Sociology
De Boelelaan 1081 (visiting address Metropolitan Building, Buitenveldertselaan 3)
1081 HV Amsterdam
the Netherlands

email: D.Pavlopoulos@fsw.vu.nl
tel: +31 (0)20 59 89254

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