Asymmetric procurement service model presentation system and method for constructing the same

Abstract

The application relates to an asymmetric procurement service model display system and a construction method thereof, and is designed in view of the technical problems of lacking model construction design of the existing asymmetric procurement service and poor structure design of the similar projector placing rack. The points are that after the asymmetric procurement service model receives the offer of a bidder, the model enters the bid evaluation stage, the procurement demand of the procurement contract is regularized, the nondiscriminatory offer of the procurement party to state-owned enterprises and private enterprises is satisfied according to the market share of the enterprise and the configuration rule of the linear city model, the expression of the winning probability is the function of the enterprise production cost, the low-efficiency allocation of the government procurement fund is corrected, the public expenditure of the government procurement is reduced, a high-efficiency low-expenditure model of the government procurement under the asymmetric procurement service model is obtained, and the optimal procurement mechanism pays attention to the social expected net welfare. Diagrams involved in the above process are directly reflected through the display system, and the main body of the display system is a projector placing rack.

Description

Technical Field

[0001] The present invention relates to an asymmetric procurement service model, and in particular to an asymmetric procurement service model display system and a construction method thereof. Background Art

[0002] Currently, procurement plays a crucial role in guiding supply-side reform. This unique market transaction method is widely used in government purchases at all levels, involving vast sums of capital. How efficiently is this capital allocated? In an asymmetric procurement environment, this paper establishes a government procurement model based on the bidder's winning probability. This model then deduces the bidder's equilibrium bidding strategy and the government's optimal procurement mechanism. However, the government procurement mechanism suffers from inefficient allocations, necessitating the design of an incentive-compatible procurement mechanism that not only ensures the validity of bidding results but also protects the private information of bidding companies, thereby reducing government procurement expenditures. Based on the conclusions presented in this paper, the procurement system is optimized from three perspectives: information disclosure, mechanism design, and fair market competition, to improve the efficiency of government spending. As a major form of public expenditure, government procurement directly influences investment and production decisions at the micro-economy level, becoming a crucial policy tool for guiding supply-side reform. It is widely used in government purchases at all levels in my country, involving vast sums of capital. However, various irregularities have emerged at various stages of government procurement. This is primarily due to the reduction in the number of participating bidders, which in turn weakens the intensity of price competition among bidders. This results in the transaction price not truly reflecting the market competitive price of the purchased goods, resulting in inefficient allocation of government procurement funds. Therefore, it is necessary to establish an asymmetric procurement service model to improve and enhance the efficiency of such government procurement. Additionally, some existing diagrams are displayed using projector stands, such as the Chinese patent application No. 201721591361.3, published on May 29, 2018, and titled "Adaptive Adjustable Projector Stand." However, these and similar products have relatively simple functional structures and applications. Summary of the Invention

[0003] To overcome these shortcomings, the present invention aims to provide an asymmetric procurement service model display system and construction method to the field. This system primarily addresses the technical issues of existing asymmetric procurement services lacking a model construction design and the suboptimal structural design of similar projector mounts. This objective is achieved through the following technical solution.

[0004] A method for constructing an asymmetric procurement service model is proposed. In this model, the government receives a profit proportion r, and the remaining r is used for the reproduction of state-owned enterprise i. All profits of private enterprise j belong to the private enterprise owner, and its profit distribution is independent of the government. The symmetric equilibrium bidding strategy is not the bidder's optimal decision-making behavior. The underlying reason is that in traditional procurement theory, the bidder's objective function is as follows:

[0005]

[0006] Where p is the bidder's price, c is the production cost, and is the probability of winning. Assuming the distribution function of cost c is F and the most competitive bidding strategy is B1, then:

[0007] Prob(win)=Prob(p<B(c))=Prob(c>B -1 (p))=1-F(B -1 (p))

[0008] In addition to the special cost distribution function, the Hotelling linear city model is used to represent the winning probability of the bidders. The bids of state-owned enterprise i and private enterprise j, the winning probability, production cost and expected profit are:

[0009] (p i , p j ), Prob i (win), Prob j (win), (c i , c j ) and (π i ,π j );

[0010] Part of the cost expenditure is the contract execution cost t, the contract execution cost t is set as an exogenous variable, and t>0;

[0011] For state-owned enterprise i, if the price offered is higher than that offered by competitors by more than t1, that is, p i >p j +t, then it is impossible for it to obtain the procurement contract; the same is true for private enterprise j, and the participation constraint is:

[0012] |p i -p j |<t

[0013] The feature is that: the purchaser receives the bidder's quotation (p i , p j), the bidding evaluation phase will begin. The procurement demand of the procurement contract is normalized to unit 1, so Prov(win) is understood as the market share of the enterprise. According to the configuration rule of the Hotelling linear city model, the purchaser's indifferent bid (p i , p j ) should meet the following requirements:

[0014]

[0015] That is, the configuration rules for procurement are:

[0016]

[0017] The contract execution cost t eliminates the dimension of price, making the winning probability of different bidders comparable. In procurement, for state-owned enterprise i, its decision is to choose the best bid p i To maximize the following optimization problem:

[0018]

[0019] The best response function of private enterprise j is:

[0020]

[0021] Similarly, private enterprise j has a certain impact on state-owned enterprise i, p i The best response quote is:

[0022]

[0023] and satisfy That is, under the configuration rules, if the model has an equilibrium bidding strategy, the equilibrium result must be stable, and the stable equilibrium bidding strategy is:

[0024]

[0025] Accordingly, the participation constraint is equivalent to:

[0026] |c i -c j |<3t

[0027] The probability of winning and expected profit are:

[0028]

[0029] and

[0030]

[0031] The expression of the probability of winning is a function of the enterprise's production costs.

[0032] When the cost of private enterprise j in this asymmetric procurement service model rises, market demand will shift from private enterprise j to state-owned enterprise i, which will be driven by product substitution. i rise, However, the impact of changes in a company's production costs on its own quotations is greater than the substitution effect on its competitors. Taking both aspects into consideration, we can see This shows that when competitors' costs rise, the demand substitution effect caused by product prices not only makes companies bid higher, but also increases the possibility of companies winning the bid. The final comprehensive effect is that the company's expected profit increases; again, using That is, as the degree of market competition increases, t decreases, the enterprise's bid price decreases, and the probability of winning increases. The combined effect of the two is that the expected profit decreases. Among them, the existence of the profit sharing ratio r among state-owned enterprises i has a significant impact on the production cost of c. i For state-owned enterprise i, its bid price p i , if state-owned enterprise i wins the bid, the actual purchase price paid by the government should be:

[0033] p i -r(p i -c i )=(1-r)p i +rc i

[0034] When designing allocation rules during the bid evaluation phase, the government will use the quoted price instead of the nominal price (1-r)p i +rc i Instead of nominal quotation p i to measure the winning probability of state-owned enterprise i; here, we call it (1-r)p i +rc i The effective quotation of enterprise i is recorded as The existence of profit sharing r makes state-owned enterprise i and private enterprise j asymmetric when competing for government procurement contracts. The production cost of private enterprises must not be higher than that of state-owned enterprises, that is, c j ≤c; the objective functions are:

[0035] and

[0036] The equilibrium bids of state-owned enterprise i and private enterprise j are:

[0037] and

[0038] The corresponding winning probabilities are:

[0039] and

[0040] Available:

[0041]

[0042] In the case of the bidding enterprise ownership information is not open, if and then p i > p j , Prob i (win) > Prob j (win); the effective offer of state-owned enterprises and private enterprise price difference is equal to:

[0043]

[0044] The bidding objective function of state-owned enterprises i and private enterprises j becomes:

[0045] and

[0046] The corresponding expected profit is:

[0047]

[0048] and

[0049]

[0050] The optimal configuration of government procurement participation constraints and incentive compatibility conditions:

[0051] (1-r)J(c i )+rc i +J(c j )>0, (Q i , Q j )=(0,1)

[0052] The optimal configuration of procurement contract is (Q i , Q j )=(0,1), the total payment of government procurement is:

[0053]

[0054] The procurement payment price is equal to:

[0055]

[0056] The procurement payment price of the corresponding mechanism is equal to:

[0057]

[0058] The difference between the two is:

[0059]

[0060] Correct the inefficient allocation of government procurement funds, reduce public expenditure on government procurement, and derive an efficient and low-expenditure model for government procurement under the asymmetric procurement service model.

[0061] The total social welfare that can be generated in this asymmetric procurement service model is W. The objective functions of state-owned enterprise i and private enterprise j will become the following optimization problem with constraints:

[0062] and

[0063] At this point, the optimal procurement mechanism focuses on the expected net welfare of society:

[0064] Wt-Prob i (win)[(1-r)p i +rc i ]-Prob j (win)p j .

[0065] This will maximize the net social welfare of government procurement. In addition to the efficiency of procurement fund expenditure, this is another major issue of procurement fund expenditure that the government is concerned about. It is also a hot topic in welfare economics research on public goods supply and deserves systematic and in-depth discussion in the future.

[0066] An asymmetric procurement service model display system, comprising a projector stand, characterized in that the projector stand has a top opening with a plate, the projector is placed within the stand, a cover is provided at the opening of the stand, and the projection head, buttons, and wiring extend out of the stand. A U-shaped stand is provided at the bottom of the stand, with one opening aligned with the opening. The two sides of the stand are hinged to the two openings of the U-shaped rotating stand via a third-axis motor. The outer diameter of the bottom of the rotating stand is connected to the second-axis motor via the rotating stand. One end of an L-shaped fixed stand is connected to one side of the rotating stand, and the other end of the fixed stand is connected to one side of the motor stand. The first-axis motor is connected to one end of an electric telescopic rod through the top of the motor stand, and the other end of the electric telescopic rod is mounted on the base. The stand and plate are located within the rotating stand and the fixed stand. The electric telescopic rod, the first-axis motor, the second-axis motor, and the third-axis motor are connected to a controller via wiring. The first-axis motor, the second-axis motor, the third-axis motor, and the electric telescopic rod can be used to adjust the height and angle of the stand to meet the desired operating requirements.

[0067] A telescopic frame is provided between the box body and the box base. The telescopic frame includes side support rods and a middle support rod. The side support rods on both sides of the middle support rod cross in an X shape through a steel bar in the middle. One end of the side support rods is respectively connected to the bottom of the box body. One end of the middle support rod supports the bottom of the box body through a lifting platform. The slide grooves on both sides of the lifting platform engage with the slots at the bottom of the box body. The other ends of the side support rods are respectively connected to the inner side of the open end of the box base through horizontal slide rails. The connection between the side support rods and the horizontal slide rails is provided with a slide rail locking button. The other end of the middle support rod is hinged to the middle of the inner side of the box base. The height of the box body can be adjusted by the telescopic frame, and the height of the box body can be further adjusted.

[0068] At least one side of the plate is provided with a rib, and one side of the plate is hingedly locked with one side of the box body via a locking knob, so that the inclination of the plate can be adjusted by the locking knob, making it easier to place a projector or speech manuscript on the plate.

[0069] The present invention establishes a complete set of asymmetric procurement service model construction methods and a projector placement stand, which is mainly applicable to the government's bidding and procurement services for state-owned enterprises and private enterprises, as well as similar asymmetric procurement services, and is used as a projector placement stand. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] Figure 1 Schematic diagram of the model display system structure of the present invention, the dotted line in the figure is the box body, and the cover is omitted.

[0071] Serial number and name of the accompanying drawings: 1. Base, 2. Electric telescopic rod, 3. Motor base, 4. First-axis motor, 5. Side support rod, 6. Middle support rod, 7. Locking knob, 8. Slide rail locking knob, 9. Horizontal slide rail, 10. Box base, 11. Lifting platform, 12. Box body, 13. Plate body, 14. Second-axis motor, 15. Rotating base, 16. Rotating frame, 17. Fixed frame, 18. Third-axis motor. DETAILED DESCRIPTION

[0072] Now, the modeling method and corresponding equipment of the present invention will be further described in conjunction with the accompanying drawings. Figure 1As shown, the main body of the display system of the asymmetric procurement service model is a projector placement stand. The top opening of the box body 12 of the projector placement stand is provided with a plate body 13. The projector is placed in the box body. The box mouth of the box body is provided with a cover plate. The projection head, buttons and lines of the projector extend out of the box body. The bottom of the box body is provided with a U-shaped box seat 10. The opening side of the box seat is on the same side as the box mouth side of the box body. The two sides of the box seat are hinged to the openings on both sides of the U-shaped rotating frame 16 through the third-axis motor 18. The bottom outer diameter of the rotating frame is connected to the second-axis motor 14 through the rotating seat 15. One end of the L-shaped fixed frame 17 is connected to one side of the rotating seat, and the other end of the fixed frame is connected to one side of the motor seat 3. The first-axis motor 4 is connected to one end of the electric telescopic rod 2 through the top of the motor seat. The other end of the electric telescopic rod is arranged on the base 1. The box body 12 and the plate body 13 are located in the rotating frame and the fixed frame. The electric telescopic rod, the first-axis motor, the second-axis motor and the third-axis motor are connected to the controller through lines. A telescopic frame is provided between the box body and the box base. The telescopic frame includes side support rods 5 and a middle support rod 6. The side support rods on both sides of the middle support rod are crossed by a steel bar in the middle to form an X shape. One end of the side support rod is connected to the bottom of the box body. One end of the middle support rod supports the bottom of the box body through a lifting platform 11. The slide grooves on both sides of the lifting platform engage with the slots at the bottom of the box body. The other ends of the side support rods are connected to the inner side of the open end of the box base through horizontal slide rails 9. The connection between the side support rods and the horizontal slide rails is provided with a slide rail locking button 8. The other end of the middle support rod is hinged to the middle of the inner side of the box base. At least one side of the plate body is provided with a rib, and one side of the plate body is hinged and locked to one side of the box body through a locking knob 7.

[0073] During use, the controller uses the first, second, and third axis motors and the electric telescopic rod to adjust the height and angle of the box, as well as the projection position, and then insert the projector into the box. The corresponding motors can also be used to adjust the height and position of the box, allowing the box's panel to be used as a desktop. Place the projector on the panel, adjust the panel's inclination using the locking knob, and adjust the height of the box using the slide rail lock knob.

[0074] In this asymmetric procurement service model, the government receives a profit proportion r, and the remaining r is used for the reproduction of state-owned enterprise i. All profits of private enterprise j belong to the private owner, and its profit distribution is independent of the government. A symmetric equilibrium bidding strategy is not the optimal decision-making behavior for bidders. The underlying reason is that, in traditional procurement theory, analyzing bidders' objectives ultimately leads to selecting the best bidder and achieving the best social outcomes. This asymmetric procurement service model is based on the objective reality of the coexistence of state-owned and private enterprises. It relies on the profit-sharing relationship between the government and state-owned enterprises and uses the Hotelling linear city model to measure the bidder's winning probability, establishing an asymmetric procurement model. Results show that when state-owned enterprises (SOEs) bid higher but win the bid, government procurement funds are inefficiently allocated, with enterprises with higher production costs responsible for the supply of goods. To correct this inefficient allocation, alternative solutions include disclosing ownership information of bidding enterprises or designing an incentive-compatible procurement mechanism. This can optimize the government procurement system by: 1) deepening enterprise reform and promoting the separation of government and enterprises; 2) enhancing information transparency and openness to encourage enterprise innovation and investment; and 3) optimizing the procurement mechanism and improving the efficiency of procurement fund allocation.

Claims

1. A display system built on an asymmetric procurement service model, the main body of the display system is a projector stand, characterized by The top opening of the box body (12) of the projector placement stand is provided with a plate body (13), the projector is placed in the box body, the box opening of the box body is provided with a cover plate, the projection head, buttons and circuits of the projector extend out of the box body, the bottom of the box body is provided with a U-shaped box seat (10), the opening side of the box seat is on the same side as the box opening side of the box body, the two sides of the box seat are respectively hinged to the openings on both sides of the U-shaped rotating frame (16) through the third axis motor (18), the bottom outer diameter of the rotating frame is connected to the second axis motor (14) through the rotating seat (15), one end of the L-shaped fixed frame (17) is connected to one side of the rotating seat, and the other end of the fixed frame is connected to one side of the motor seat (3), the first axis motor (4) is connected to one end of the electric telescopic rod (2) through the top of the motor seat, and the other end of the electric telescopic rod is set on the base (1), the box body (12) and the plate body (13) are located between the rotating frame and In the fixed frame, the electric telescopic rod, the first axis motor, the second axis motor and the third axis motor are connected to the controller through the line; a telescopic frame is provided between the box body (12) and the box seat (10), and the telescopic frame includes side support rods (5) and a middle support rod (6), the side support rods on both sides of the middle support rod are crossed in an X shape through the middle steel bar, one end of the side support rod is respectively connected to the bottom of the box body, one end of the middle support rod supports the bottom of the box body through the lifting platform (11), and the slide grooves on both sides of the lifting platform are buckled with the slot holes at the bottom of the box body, the other ends of the side support rods are respectively connected to the inner side of the open end of the box seat through the horizontal slide rail (9), the connection between the side support rod and the horizontal slide rail is provided with a slide rail locking button (8), and the other end of the middle support rod is hinged to the middle of the inner side of the box seat; at least one side of the plate body (13) is provided with a retaining edge, and one side of the plate body is hinged and locked with one side of the box body (12) through a locking knob (7).

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