Research on Supermarket Product Layout Method Based on Comprehensive Correlation Degree

The commodity layout of a large supermarket has an important impact on the sales and benefits of the supermarket. The quality of the commodity layout directly affects the consumer’s psychological feeling and purchasing behavior in the shopping process. According to the previous research, we can find that the traditional commodity layout method has the shortcomings of lack of data support, poor stability, and does not include the actual factors such as the impulse purchase behavior of consumers and the purchase law of commodities in the research scope, resulting in the problem that the optimization effect is not obvious. In view of this deficiency, this paper proposes a commodity layout method based on comprehensive correlation degree. Firstly, the concepts of adjacency effect value and placement freedom degree are given. Based on this, transaction data is used to mine association rules of commodities in customers’ shopping baskets, and the influence of the same commodity on surrounding commodities due to different placement positions is further analyzed. Based on the maximization of the comprehensive correlation value, an analytic model for the optimization of commodity layout is established, and the optimal commodity layout is obtained by using genetic algorithm. In this article, the layout of the B supermarket commodity layout is taken as an example. The overall layout is more closely related. It verifies the feasibility and superiority of the commodity layout method based on comprehensive correlation, which can better improve the market competitiveness of the supermarket.

Household bargaining, spouses’ consumption patterns and the design of commodity taxes

We study optimal commodity taxes under household bargaining. We focus on the taxation of ‘female’ and ‘male’ products. The expressions for the tax rates include Pigouvian and incentive terms. When the female spouse has the lower bargaining weight, the Pigouvian term calls for a subsidization of the ‘female good’, and a taxation of the ‘male good’. The incentive term depends on the distribution of bargaining weights across couples. When the bargaining weight of the female spouse increases with wages, the female good will be consumed in larger proportion by more productive couples. In this case the Pigouvian term is mitigated.

Ramsey Strikes Back: Optimal Commodity Taxes and Redistribution in the Presence of Salience Effects

An influential result in modern optimal tax theory, the Atkinson and Stiglitz (1976) theorem, holds that for a broad class of utility functions, all redistribution should be carried out through labor income taxation, rather than differential taxes on commodities or capital. An important requirement for that result is that commodity taxes are known and fully salient when consumers make income-determining choices. This paper allows for the possibility consumers may be inattentive to (or unaware of) some commodity taxes when making choices about income. We show that commodity taxes are useful for redistribution in this setting. In fact, the optimal commodity taxes essentially follow the classic “many person Ramsey rule” (Diamond 1975), scaled by the degree of inattention. As a result, to the extent that commodity taxes are not (fully) salient, goods should be taxed when they are less elastically consumed, and when they are consumed primarily by richer consumers. We extend this result to the setting of corrective taxes, and show how non-salient corrective taxes should be adjusted for distributional reasons.