1. Anything Research. (2019). 2018 U.S. Industry Statistics & Market Research – Florists. Anything Research Industry Data & Market Research. https://www.anythingresearch.com/industry/Florists (accessed April 2021).
2. Arizton. (2021). Floral Gifting Market in the U.S.: Regional Outlook & Forecast for 2018 – 2023 (Arizton Advisory & Intelligence). https://www.arizton.com/market-reports/floral-gifting-market-in-united-states-2025 (accessed April 2021).
3. Analysis of consumer purchases of floral products in supermarkets.;Behe;HortScience,1992
4. Estimating demand for public goods: an experiment.;Bohm;Eur. Econ. Rev.,1972
5. Measuring the value of a public good: an empirical comparison of elicitation procedures.;Brookshire;Am. Econ. Rev.,1987