At the moment the New Ecological Paradigm Scale and its variants seem to lead the way. They work reasonably well, factoring cleanly almost always. While it is called the NEP the other end of the scale is neoliberalism (as characterised by many - don't forget there's no official definition).
The measure of political values developed by Caprara, Schwartz, and colleagues har includes "free entrepreneurship" measured with four items. Reliability is not great, but it's a start.
The paper cited below develops a general laissez-faire attitudes scale that includes six sub-items assessing attitudes about free market enterprise. I'm not sure how reliable the six items are on their own, but they could work if slightly adapted to fit the audience who will be serving as your research participants (the scale was originally developed for British citizens).
Heath, A., Evans, G., & Martin, J. (1994). The measurement of core beliefs and values: The development of balanced socialist/laissez faire and libertarian/authoritarian scales. British Journal of Political Science, 24(01), 115-132.
First of all, thank you for suggestion. I have used New Ecological Paradigm Scale in my master thesis with satisfactory results. But this scale now does not fit my needs, because it touches attitudes to neoliberal economy just slightly. I must look elsewhere.
This looks very promising! The items are easy understandable and uncover just what I am looking for. The questionnaire is short and goes straight to the point. I am not decided, what scale I eventually use, but this one is surely in consideration. Thank you a lot!
Thank you for pointing me in that direction! Jost is fantastic researcher, no doubt about it. The scales seem to me too long with too many items. On the other hand, they touch every aspect of free market ideology. I will surely consider putting this scale in my thesis.
Thank you! I would not find that article! The scales look interesting. Some items are very tempting to test on my sample, like: “There is one law for the rich and one law for the poor”. As well as another question about the right of workers: “Workers should have a lot of say in running the places they work”. It is very vital option to consider. Maybe I will use at least some items. Thank you!
I would like to point your attention to a recently published book: Gegen Staat und Kapital - für die Revolution! Linksextremismus in Deutschland - eine empirische Studie.
The book investigates radical left, but I am not able to obtain any details, since the book and a resume as well are written in German language. I wrote an email to an author about possibility of translating resume, but I was left without replay. Too bad such interesting works remain inaccessible to us.