# Meta-analysis helps researchers do which of the following: a. Investigate the effects of minimum wage increases through controlled laboratory experiments b. Infer the effects of increases in the minimum wage by averaging the results of other studies c. Generally find elasticity estimates for labor demand to be highly elastic d. Examine changes in the minimum wage in multiple countries

Meta-analysis helps researchers do which of the following:

a. Investigate the effects of minimum wage increases through controlled laboratory experiments
b. Infer the effects of increases in the minimum wage by averaging the results of other studies
c. Generally find elasticity estimates for labor demand to be highly elastic
d. Examine changes in the minimum wage in multiple countries

I think answer is b. according to the literature below:

"Research since 2007, however, has reported conflicting findings. Some studies use “meta-analysis,” averaging across a set of studies to draw conclusions. For example, Doucouliagos and Stanley (2009) report an average elasticity across studies of −0.19, consistent with earlier conclusions, but argue that the true effect is closer to zero; they suggest that the biases of authors and journal editors make it more likely that studies with negative estimates will be published. However, without strong assumptions it is impossible to rule out an alternative interpretation—that peer review and publication lead to more evidence of negative estimates because the true effect is negative. In addition, meta-analyses do not assign more weight to the most compelling evidence. Indeed, they often downweight less precise estimates, even though the lower precision may be attributable to more compelling research strategies that ask more of the data. In short, meta-analysis is no substitute for critical evaluation of alternative studies."
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Demarion Thornton
Economics is used to study how scarce resources on earth can be utilised efficiently to satisfy consumer demand. As humans started developing into advanced species, their demand started increasing. Thus, the subject helps in maximizing the utility of humans in such a manner that the limited resources are used efficiently.

The study of economics is done by economics and they theorise the real-world problems with assumptions in order to understand how the economic problem can be tackled. Since economic theory cannot be practised in real life, like physics, chemistry or biology. the study of new eocnomic theories mainly revolves around assumption-based models.

When economists formulate a theory, they colled data, primary or secondary in order to prove their hypothesis.

A meta-analysis is a form of research used by scientists of different fields in order to precisely estimate an outcome. It uses already processed data to create a systematic knowledge base.

In economics, economists use meta-analysis in order to identify precisely the result of a process and how it is efficient compablack to other processes. Here, Meta-analysis helps researchers examine changes in the minimum wage in multiple countries, thus the correct option is d.
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Taylor Church
Option a is incorrect because economists cannot perform laboratory experiments.
Option b is incorrect because averaging any data results will not give an estimate not a precise outcome result.
Option c is incorrect because meta-analysis can be used for a variety of purposes related to economics.