TABLE 1.

Product options and decoy information for pork products.

Type of pork	Product option	Decoy information
Traceable pork hind leg meat	15.4 Yuan/500 g, traceable information covers breeding link (x). 16.8 Yuan/500 g, traceable information covers breeding and slaughtering links (y). 18.2 Yuan/500 g, traceable information covers breeding, slaughtering, processing, and sales links (z).	Low-price decoy information: Considering limited income and limited budget for food consumption, you can save much from buying inexpensive pork to purchase other necessary foods such as fruits and vegetables.
		High-price decoy information: There are risks in consuming ordinary pork. Long-term consumption of pork containing clenbuterol or veterinary drug residue is not conducive to health. In contrast, traceable pork has a relatively better guarantee of safety and quality.
Voted-trusted-brand (VTB) pork hind leg	24 Yuan/500 g, COFCO Joycome pork hind leg meat with skin (x) 36 Yuan/500 g, Zhili black pork hind leg meat (y) 40 Yuan/500 g, Netease Weiyang black pork hind leg meat (z)	High-price decoy information: There are certain quality and safety risks in consuming conventional pork, whereas VTB pork has generally better quality. A whole process safety traceability system is implemented for COFCO Joycome pork. Zhili black pigs are fed with pure grain, raised free-range, and have guaranteed quality. Netease Weiyang pork has not only assured quality but also a higher level of nutrition.
Origin-labeled pork hind leg	40 Yuan/500 g, Guangxi Bama fragrant pork (x) 60 Yuan/500 g, Jinhua Liangtouwu pork hind leg meat (y) 80 Yuan/500 g, Daocheng Tibetan fragrant pork hind leg meat (z)	High-price decoy information: Origin-labeled pork is generally believed to have better quality and safety, in addition to its distinguished local characteristics. Guangxi Bama pork has a smooth taste, not greasy, and easy to digest. Jinhua Liangtouwu pork is popular country-wide for its thin skin, fine bones, not greasy meat, and rich flavor. Daocheng Tibetan pork is famous for its smooth, tender meat with high-level nutrition, good flavor, and leanness.

Prices for traceable pork hind leg meat in Table 1 are based on Wu et al. (2018), and prices for VTB and origin-labeled pork were obtained from market surveys conducted in Wuxi, Jiangsu Province, China prior to this study.