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# General Economics - Science topic

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presently i am doing a research on Economic impact of event tourism. Through literature I found out that this model is suited for economic impact study and many authors had used this for general economic impact but not on event tourism. If you can guide me to any published (or unpublished) work, it would be appreciated.  I am actively searching for material on this study. Please note, I am looking for the model to test the impacts of event tourism on host communities and stakeholders. Thank you in advance!
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Does starting a community based questionnaire survey requires IRB clearance?
Does the questionnaire is to be verified/certified or validated?
How to calculate the number of participants for the survey?
I totally agree with the previous answers. When planning to conduct population survey you need a number of steps:
1. Endorsement of the study itself by some referent body
2. Endorsement and validation of the questionnaire. If you use an already validated questionnaire, then you need only endorsement.
3. Some sort of communication and coordination with key figures in the targeted population to facilitate the survey
4. Definitely you need an estimate of the sample size. For this, you use the formula suggested by Ishag Adam above. It is the simplest formula. From previous studies you need some estimation of P (the proportion of people with a characteristic you study. I do not know what information you gather in your survey but let me assume that one piece of data collected is proportion of smokers among adult males. Lets assume that previous studies put this proportion at .24, The sample size for your study can be calculated as:
Z squared*P(1-P) 1.96 *1.96 *0.24* 0.76
N=---------------------------------= ----------------------------------- = 280 adults at least
e squared 0.05 *0.05
If we assume there is one adult per family, then you need to visit at least 280 families
Note: The sample size will be much bigger of e is smaller, e.g.=0.02 for example N=1750
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Pakistan does not maintain input-output table. I find this source (http://worldmrio.com/country/), where the I/O tables of all countries are available. In addition, are these tables balanced?
How would you rate the accuracy of individual country based input-output tables available at http://worldmrio.com/country/? Are they balanced?. Available from:
Not very accurate but in the absence of their non-availability  by statistical organisation of your country, they may be used.
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Hello everyone, I am doing a research about Islamic trade finance and I have some unanswered questions which I hope I can seek the answers here.
1. Islamic and conventional trade finance co-exist. When should we use Islamic and when we use conventional trade finance?
2. Should a non-Muslim country participate in Islamic trade finance? And what it takes for a non-Muslim country to do that?
Hi Nguyen
1-cost-benefit analysis should help.
2-if you mean private sector then scores of them are already using it. Public sector is following suit. The objective function is to Max (raise funds) with Min (costs). Islamic finance has been shown to do that so it is growing at 2 digits at the time when the conventional has been experiencing another hiccup.
Regards
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Or something which can replace it.
I only could find data for 2001, 2005, 2008 and 2011 in the Spain Central Bank stats:
I know that France for example has it got from 1978 at least in www.insee.fr
Thank for any help!