scholarly journals Continuously Increasing Price in an Inventory Cycle: An Optimal Strategy for E-Tailers

2008 ◽  
Vol 2008 ◽  
pp. 1-14
Author(s):  
Prafulla Joglekar ◽  
Patrick Lee ◽  
Alireza M. Farahani

Operations researchers have always assumed that when a product's unit cost is constant and its demand curve is known and stationary, a retailer of the product would find it optimal to replenish the inventory with a fixed quantity and to sell the product always at a fixed price. We present, with proof, a model that shows that, in such a case, an e-tailer is better off using a continuously increasing price strategy than using a fixed price strategy within each inventory cycle. Sensitivity analysis shows that this strategy is particularly profitable when demand is highly price sensitive and the inventory ordering and carrying costs are high.

2021 ◽  
pp. 1-33
Author(s):  
Saten Kumar ◽  
Dennis Wesselbaum

Abstract We use novel survey data to study firms’ inventory contracts. We document facts about the usage of purchase and sale contracts. We find that firms purchase and sell inventory through three contractual arrangements: fixed price and quantity, fixed price only, and fixed quantity only. The former holds the largest share of contracts. The average duration of purchase contracts is not very different from the average duration of sale contracts. We then find that the upward bias in inflation expectations is a feature of firms that do not purchase or sell largely through contracts. Our findings are useful in the calibration of sticky price models.


Author(s):  
Kunal Tarunkumar Shukla ◽  
Mihir S. Suthar

In this chapter, we study different inventory systems with trapezoidal demand rate, i.e., demand rate is a piecewise linear and continuous function. This chapter presents mathematical formulations of optimal replenishment policies for items with trapezoidal demand rate. Section 1 presents detailed literature survey for inventory systems with ramp type and trapezoidal type demand. In Section 2, Formulation technique for inventory system of items, which follows trapezoidal type demand rate. Section 3 presents effect of deterioration in model discussed in Section 2. Optimal strategy for deteriorating items with expiration dates under trapezoidal type demand and partial backlogging is discussed in Section 4. In Section 5, sensitivity analysis is carried out and chapter is concluded along with future research scope in Section 6.


2016 ◽  
Vol 62 (No. 3) ◽  
pp. 113-121 ◽  
Author(s):  
M. Kavka ◽  
M. Mimra ◽  
F. Kumhála

The sensitivity analysis of key operating parameters on the average annual sub-profit in a group of three combine harvesters operating in companies providing agricultural services were analysed. Based on the results of the cost analysis, the following key operating parameters with the greatest influence on the costs were identified: the purchase price of the machine, the price of fuel, maintenance costs, personnel costs and annual performance. These parameters were used in the sensitivity analysis to investigate their effect on unit costs. Changing the above-mentioned parameters is calculated within ± 30% from their mean value. To perform a sensitivity analysis of the average annual sub-profit of combine harvesters, the unit price of mechanized work was additionally used. The results showed that greatest impact on both the average annual earnings of combines operation and on the changes in unit cost was those of the annual performance of the combine harvester, combine harvester purchase price and the cost of fuel. On the other hand, maintenance and personnel costs had a smaller influence concerning these changes of parameters.


Author(s):  
Gianluca Grilli

Natural environments represent background settings for most outdoor recreation activities, which are important non-consumptive benefits that people obtain from nature. Recreation has been traditionally considered a non-market service because it is practiced free of charge in public spaces and therefore of secondary relevance for the economy. Although outdoor recreation in natural parks became relevant during the 19th century, the increased popularity of recreation after the Second World War required tools for the assessment of recreational benefits, which were not considered in the evaluation of investments in recreational facilities, and increasing spending for recreational equipment captured the attention of outdoor recreation as an economic sector. In the 1990s, it was observed that many recreational activities were commercialized and started being considered equally important to tourism as a means to boost the economy of local communities. The expansion of outdoor recreation is reflected in a growing interest in the economic aspects, including cost–benefit calculations of the investments in recreational facilities and research on appropriate methods to evaluate the non-market benefits of recreation. The first economic technique used for valuing recreation was the travel cost method that consisted in the assessment of a demand curve, where the demanded quantity is the number of trips to a specific site and the cost is the unit cost of travel to the destination. After this first intuition, the number of contributions on recreation valuation exponentially grew, and new methods were proposed, including methods based on stated preferences for recreation that can be used when travel cost data that reveal consumers’ behavior are not available. A regular assessment of recreational benefits has several advantages for public policy, including the evaluation of investments and information on visitor profile and preferences, income, and price elasticity, which are essential to understand the market of outdoor recreation and propose effective strategies and recreation-oriented management. The increasing environmental pressure associated with participation in outdoor recreation required effective conservation activities, which in turn posed limitations to economic activities of local communities who live in contact with natural resources. Therefore, a balance between environmental, social, and economic interests is essential for recreational destination to avail of benefits without conflicts among stakeholders.


2010 ◽  
Vol 60 (4) ◽  
pp. 405-426
Author(s):  
A. Marques ◽  
A. BrandÃo

Literature on firms’ entry and exit decisions provides empirical evidence that industries with many exits also have many entries. We present a paper that merges some different approaches to the entry and exit of firms and which proposes a new method for looking at the entrepreneurial decision. Our model theoretically supports what empirical evidence has shown and holds; that databases are not yet developed enough to understand the whole exit process. We demonstrate that the possibility of recovering some share of investment costs makes entry more than just a production decision. Within a defined time horizon, a firm can enter the market despite making a loss from production output since the firm’s return consists of both sales and investment cost recovery. Entry may be the optimal strategy even when the unit cost is higher than the market price.


2021 ◽  
Author(s):  
Guojun Sun ◽  
Jingwen Wang ◽  
Xiaoying Zhou ◽  
Zhichao Hu ◽  
Zuojun Dong

Abstract Background: Treatment with trametinib plus dabrafenib for patients exhibiting metastatic BRAF V600-mutated melanoma has been approved in China.Method: We developed a Markov model to evaluate and compare the cost-effectiveness of trametinib plus dabrafenib against vemurafenib. Information on clinical situations, the rate of adverse reactions, follow-up treatments, and estimated transition probabilities were derived from the results of a clinical trial that compared treatment with trametinib plus dabrafenib against vemurafenib alone. A one-way sensitivity analysis and a probabilistic sensitivity analysis were conducted to assess the influence of uncertainty on the key model.Result: Treatment with trametinib plus dabrafenib for one patient in the treatment period was estimated to cost CNY 332 294, and yield a total gain of 16.6 quality-adjusted life years (QALYs). Compared with vemurafenib, treatment involving trametinib plus dabrafenib yielded additional 3.96 QALYs, resulting in a unit cost-effectiveness of CNY 27 460 per QALY. Sensitivity analysis shows that the results are reliable.Conclusion:From the perspective of China's health system, applying China's per-capita GDP in 2020 as the threshold of willingness-to-pay, it is cost-effective to treat metastatic melanoma patients exhibiting BRAF V600 mutation with dabrafenib plus trametinib.


2017 ◽  
Vol 21 (1) ◽  
pp. 56-68 ◽  
Author(s):  
Sanghack Lee ◽  
Jungran Cho

Purpose Many governments around the world have strategically privatized their ports. The privatized ports try to maximize profits by setting higher charges for port services and attracting transship cargos. This paper shows that such privatization of ports can be complemented by adjusting the number of ports. Specifically, the purpose of this paper is to derive the optimal number of ports in cases in which ports serve transship and domestic cargos. Design/methodology/approach This paper constructs a theoretical model in which ports compete with each other for transship and domestic cargos. In the first stage, the government determines the number of ports. In the second stage, the ports compete with each other in quantity to maximize profits. The authors have derived the optimal number of ports that maximizes national welfare. Findings The optimal number of ports is expressed as a function of the slope of the demand curve, the slope of the supply curve, and the share of domestic demand relative to total demand for port services. It is shown that the optimal number of ports tends to increase as the share of domestic cargo increases. The optimal number of ports, n*, is given as n*=1/(1−θ), where θ denotes the share of domestic demand in total demand for port services, when the unit cost of port services is constant. Research limitations/implications The analysis in the present paper is confined to the case of unilateral intervention by the government of the domestic country. Analyzing interaction among governments via competition policy would offer valuable policy implications. Practical implications The results of the current research offer important implications for Korean port policy in the context of maritime industrial changes, in particular, China’s New Silk Road initiative. In particular, the findings of this study suggest that Korea’s investment in ports should be concentrated on ports with competitive advantages. Originality/value Relatively scant attention has been paid to the possibility, or need, of strategic privatization being complemented by governmental competition policy. Filling this knowledge gap, the authors have shown that the government can mitigate the negative effects of privatization on domestic consumer surplus by introducing competition in the supply of port services.


2019 ◽  
Vol 17 (2) ◽  
pp. 57-61
Author(s):  
Diana Ma'rifah

AbstractThe purpose of this study is to analyze competitive strategy of smartphone company. Questionnaires were distributed to 100 students of STIE Putra Bangsa Kebumen. The aims of the questionnaires were to collect the data of students smartphone brand and the reason why they choose it. The data processing found that Xiaomi and Samsung are the most smartphone brands used by students. To determine the optimal strategy for both companies is analyzed using game theory. The results of this study are Xiaomi using price strategy and Samsung using quality product strategy.Keywords: smarthphone, game theory, competitive strategy.


Data ◽  
2019 ◽  
Vol 4 (4) ◽  
pp. 141 ◽  
Author(s):  
Aniruddha Dutta

This study examines a pricing approach that is applicable in the field of online ticket sales for game tickets. The mathematical principle of dynamic programing is combined with empirical data analysis to determine demand functions for university football game tickets. Based on the calculated demand functions, the application of DP strategies is found to generate more revenues than a fixed price strategy. The other important result is the capacity distribution of tickets according to the football game intensity. Prior studies have shown that it is sometimes more profitable or football clubs to allocate a share of tickets to a retailer and earn a commission based on the sales, rather than selling the entire capacity of tickets by itself. This paper finds that in a high intensity game, where the demand is generally high, it is optimal for the club to sell all tickets by itself. Whereas, for less popular games, where there is considerable fluctuation in demand, the capacity allocation problem for maximized revenues from ticket sales, becomes a harder optimization challenge for the club. According to DP optimization, when the demand for tickets is relatively low, it is optimal for the club to retain 20–40% of the tickets and the rest of the capacity should be sold to online retailers. In the real world, this pricing technique has been used by football clubs and thus the secondary market online retailers like Ticketmaster and Vivid Seats have become popular in the last decade.


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