I want to analyze about halal industry to country's economy but i was confused because of the variable. So, i need your help to identify the instrumen. Please help me! To find a variable that can be used to measure a halal industry and country's economy but GDP and Production Index. Thank you so much
I suggest that you read papers that talk about halal industry as regards GDP, Production index, etc. From these papers, you may choose the variable(s) that is best suited to your topic and objectives.
https://jupidi.um.edu.my/index.php/JS/article/view/6784
The following article can be helpful-
https://www.emerald.com/insight/content/doi/10.1108/RAMJ-09-2020-0052/full/html
https://www.salaamgateway.com/specialcoverage/SGIE20-21
The S&P 500® Shariah includes all Shariah-compliant constituents of the S&P 500, the leading benchmark for the U.S. equity market.see the link
https://www.spglobal.com/spdji/en/indices/equity/sp-500-shariah-index/#overview