Endogenous mergers under multi-market competition

This paper examines a simple model of strategic interactions among firms that face at least some of the same rivals in two related markets (for goods 1 and 2). It shows that when firms compete in quantity, market prices increase as the degree of multi-market contact increases. However, the welfare consequences of multi-market contact are more complex and depend on how two fundamental forces play out. The first is the selection effect, which acts to increase welfare, as shutting down the relatively more inefficient firm is beneficial. The second opposing effect is the internalisation of the Cournot externality effect; reducing the production of good 2 allows firms to sustain a higher price for good 1. This works to increase prices and, therefore, decrease consumer surplus (but increase producer surplus). These two effects are influenced by the degree of asymmetry between markets 1 and 2 and the degree of substitutability between goods 1 and 2.     

Firm entry,product repositioning and welfare

We show that the entry of a second firm in a horizontally differentiated market (ala Hotelling) may harm consumers as prices increase and consumer’s surplus possibly decrease. We first derive the price and the consumer’s surplus of a monopoly which is located at the center of the market. When a second firm enters the market the first firm repositions and the two firms locate at their equilibrium points. Although competition adds to variety and increases consumer’s surplus, the post entry increase in price may outweight the gains from extra variety and make consumers worse off.     

Competitive Mixed Bundling and Consumer Surplus

Mixed bundling in imperfectly competitive industries causes some prices to rise and others to fall. This paper studies under what conditions mixed bundling works for or against the consumer interest. We find that if buyers incur firm-specific costs or have shop-specific tastes then competitive mixed bundling lowers consumer surplus overall and raises profits—the same is true of competitive volume discounts. Competition without these volume discounts causes all prices to be kept low as larger customers are targeted; with volume discounts the prices for heavy users drop, but more is extracted from small users. The consumer surplus result is reversed if the differentiation between components as opposed to firms is key.     

供应链管理视角下的区域经销商品牌培育

区域经销商品牌培育问题,我国无论在理论界还是在实践中目前均较少涉及.以经销商企业品牌培育为核心,形成与上游供应链相契合的下游供应链,是区域经销商品牌培育和完善市场控制力的必由之路.     

Hamburger Prices and Spatial Econometrics

This paper applies spatial econometrics to hamburger price data to assess the degree of substitutability of products and locations of spatially dispersed franchised chains. First, while intrachain price variation exists, I find that hamburger prices at neighboring outlets of different chains are spatially uncorrelated. I conclude that their products are not close substitutes, which provides an explanation for why price promotions have not raised market share. I do find spatial price correlation, however, among proximate outlets of separate franchisees within the same chain. This finding implies that customers view proximate locations of a chain as substitutes.     

Keeping Two Sets of Books: The Relationship Between Tax and Incentive Transfer Prices

Multinational enterprises use two types of transfer prices: the tax transfer price to achieve optimal tax outcomes and the incentive transfer price to provide appropriate incentives to offshore managers. The two optimal transfer prices are independent if taxable income is assessed using the formula apportionment approach. Under the separate entity approach, however, they are interdependent: they both decrease as the penalty for noncompliance with the arm's length principle increases; and the tax transfer price decreases and the incentive transfer price increases as the marginal cost of production increases. We also examine the case where the incentive transfer price is negotiated rather than dictated by the parent. The results are robust to different market structures and tax environments.     

How does competition among lodging sharing platforms affect welfare and profits?

We investigate the likely effect on prices, consumer surplus, and profits of intensified competition among peer‐to‐peer lodging platforms. We find that intensified competition in the sharing economy may give rise to some surprising results. For instance, intensified competition may allow platforms to charge higher fees from peer suppliers and lead, therefore, to a decline in consumer surplus. Only if the market of professional hoteliers is highly competitive, intensified competition among platforms leads to the traditional outcome that the entry of more platforms leads to lower fees charged from consumers and to enhanced consumer surplus. We also find that platforms may actually earn higher profits when there is intensified competition among professional hoteliers. In addition, while intensified competition among professional hoteliers leads to a decline in the fees that platforms can charge customers, it may actually result in higher lodging prices. We explain these counterintuitive results by the dual role that the lodging price plays in affecting the welfare of individuals active in the sharing economy. While a higher price has an adverse effect on the welfare of demanders of lodging it benefits peer suppliers of lodging because a higher lodging price raises the compensation they receive when offering lodging capacity to a platform.     

Production quality and pricing strategy for substitutable products under comparison effects

Comparison effects have been studied extensively in many fields. In particular, existing operations management articles have discussed the impact of comparison effects on enterprises' production and pricing decisions. Research has also shown that consumers' purchasing decisions are primarily determined by three factors: product quality, selling price, and comparison effects. The current study introduces the concepts of social and temporal comparison effects to examine how comparison effects influence a monopolist’s production quality and pricing strategy for substitutable products. Results reveal the following: (1) Setting different prices for even two types of substitutable products with negligible quality differences can divide customers into three groups under the influence of social comparison effects in a single-stage model. (2) The monopolist should avoid using a price discrimination strategy in which products with a short market life cycle have the same quality but different prices. (3) When the market life cycle of products is sufficiently long in the single-product market and the market with two substitutable products, the monopolist’s optimal choice in the second stage is to keep production quality constant and increase the selling price. Consequently, the number of buyers does not decrease because of temporal comparison effects. Therefore, the firm increases its revenue. (4) For the market with two substitutable products with quality differences, one approximate optimal strategy for the enterprise in the second stage is to keep the selling price constant with the assumption that product quality cannot be adjusted after the first period. At this point, the consumption situation in the market is the same as that in the first stage. Therefore, when no external constraints exist, the monopolist firm can obtain more benefits in the second stage than in the first stage by exploiting the temporal comparison effects of consumers in the second stage. (5) When consumer identity information can be confirmed in the market, social comparison effects, similar to temporal comparison effects, could help the enterprise increase its price and profit while maintaining product quality. These social and temporal comparison effects constrain consumers. Thus, the number of people who continue to buy products does not decrease.     

地价与房价关系探析

在对房地产市场结构、运行模式分析的基础上,分析并阐述地价与房价之间的关系。为了清楚揭示这二者之间的关系,首先对“地价是否是房价的决定因素”这个问题进行了探讨,并在此基础上从市场角度出发,沿着市场→房价→地价这条主线,揭示在市场作用下受供求关系的影响房价不断攀升,而且有力推动地价上涨。接着,继续研究地价、房价的变动对房地产市场所产生的影响,揭示了当前地价、房价的上涨不但没有降低需求热度,反而使开发商和购房者的购买欲更旺,市场的供求差距进一步拉大,以此形成一个循环正反馈链。最后,针对房价上涨,对中央政府和地方政府的协调行为提出了几点建议。     

The Determinants of Price Adjustments in Retail Supermarkets

This paper examines the determinants of price adjustment decisions by supermarkets to increase or decrease prices for 11 different food categories and evaluates the characteristics of these firms that influence these decisions. We use a unique dataset to analyze firm variables and industry variables and their impact on price adjustment in supermarket stores. The study contributes to the price adjustment literature by identifying determinants of price behavior by stores and product category. We find that the rationale for increasing prices differs from that for decreasing prices, retailers make different adjustment decisions based on product category, and market‐level controls have little impact. Copyright © 2015 John Wiley & Sons, Ltd.     

Price-matching policies: An empirical case

Promises by retailers to match the prices of their competitors give an impression of fierce price competition. These policies, however, may deter rivals from cutting prices because the threat of price matching makes it more likely that market share will not be gained. This paper empirically tests these two conflicting theories using data collected from grocery stores in a market where several stores had announced that they would match the prices of the low-price supermarket. The evidence supports the theory that price-matching policies help supermarkets avoid price competition and therefore lead to generally higher prices.     

Trip Chaining: Who Wins Who Loses?

This paper studies how trip chaining (combining commuting and shopping or commuting and child care) affects market competition: in particular, pricing and the equilibrium number of firms as well as welfare. We use a monopolistic competition framework, where firms sell differentiated products as well as offering differentiated jobs to households, who are all located at some distance from the firms. The symmetric equilibriums with and without the option of trip chaining are compared. We show analytically that introducing the trip chaining option reduces the profit margin of the firms in the short run, but increases welfare. The welfare gains are, however, smaller than the transport cost savings. In the free-entry long-run equilibrium, the number of firms decreases but welfare is higher. A numerical illustration gives orders of magnitude of the different effects.     

Productivity and Welfare

Technical change is generally characterized by a rate and biases, both evaluated for given producer prices. This paper examines the potential discrepancy between this rate and the corresponding rate of consumer welfare change as measured by Allais distributable surplus. We postulate a general equilibrium context with various market failures (taxes, quotas, imperfect competition, and “poorly priced” commodities), and use comparative statics to express the rate of welfare change in terms of the rate and biases of the technical change. An elementary simulation model of a taxed economy suggests that the rate of welfare change may differ from the rate of technical change by as much as 50% under plausible circumstances.     

Reverse Pricing and Revenue Sharing in a Vertical Market

Advancing in information technology has empowered firms with unprecedented flexibility when interacting with each other. We compare welfare results in a vertical market (e.g., manufacturers and retailers) for several types of pricing strategies depending upon the following: (1) which side (retailers or manufacturers) chooses retail prices; and (2) whether there is revenue sharing or linear pricing between the two sides. Our results are as follows. Under revenue sharing, retail prices (and thus industry profits) are higher if and only if they are chosen by the side featuring less competition. Under linear pricing, however, retail prices are higher if they are chosen by the side featuring more competition (for linear demand functions). Relative to linear pricing, revenue sharing always leads to lower retail prices, higher consumer surplus and social surplus. However, the comparison on industry profits depends on the demand elasticity ratios. Revenue sharing raises industry profits when the elasticity ratios are small, but the results are reversed when the elasticity ratios are large. Copyright © 2014 John Wiley & Sons, Ltd.     

Equilibrium in a mixed economy of arrow-debreu type

The functioning of the current NIS economies is severely affected by regulatory interferencies with supply and demand for many commodities. In particular, the presence of dual markets is characteristic for these economies. On the first market, typically the “low-price sector” of the economy, prices are fixed and the allocation of goods is determined by rationing schemes and governmental orders. On the second market, flexible prices resulting from the market mechanism coordinate demand and supply. It is allowed that any surplus of good purchased on the first market can be sold on the second market at the then prevailing market prices.     

Buying Decision Coordination and Monopoly Pricing of Network Goods

We analyze how uncertainty about consumers' preferences affects the pricing of a network device and the interaction usage it enables. A premium device price may give high hardware profits, but adoption will be low reducing the profits from interaction services. The firm internalizing this adjusts its hardware price downward, and prices as if it was getting the maximal interaction usage profits from the full network. Profits decrease in uncertainty, whereas consumer surplus increases in uncertainty, but only if the level of uncertainty is high. Bundling the device and services is profitable if uncertainty relates mostly to consumers' private information.     

Supply-constrained fixed price equilibria in monetary economies

In this paper we consider an economy with restrictions on the relative prices of non-money commodities. The non-money commodities are partitioned into two groups, index makers and price following commodities. Then two cases are considered, namely that the relative prices of the index makers are fixed, respectively free. In both cases the money prices are flexible, whereas the relative prices of the price following commodities are tied to the prices of the index makers. The existence of a supply-constrained equilibrium is proved with (i) no rationing on the money commodities (stores of value), and (ii) at least one non-money commodity is not rationed. If prices of the index makers are fixed the result strengthens a theorem of Dehez and Drèze, if the prices are free a theorem of Kurz is strengthened. This paper is not only concerned with these existence results, but also with the question whether supply-constrained equilibria should appear more frequently than demand-constrained equilibria.     

房产税对房产市场影响的实证研究——上海模式和重庆模式的比较

文章首先运用HP滤波的方式分析了沪渝两地房产税对新房和二手房在价格和成交量上的影响,发现上海房地产市场对房产税的的征收反应更为理性,影响效果更好,但两地区新房和二手房市场的反映都存在差异;此外,利用房价对数模型,发现房产税都能有效的影响两地的房价,但由于影响两地房价的因素有很大的差异,效率并不一样,上海地区房产税每增加1%,房价将下降0.553%,重庆地区房产税每增加1%,房价将下降0.041%。因此国家需区别对待新房和二手房市场,并且因地制宜,推广不同的房产税模式。     

Dynamics of Wheat Prices in the Wake of Market Reforms: The Case of Pakistan

Using Autoregressive Conditional Heteroskedastic (ARCH) method, this paper examines the effects of market reforms on the distribution of real mean prices and their variability before and after reforms. It is found that market-oriented reforms benefited producers and consumers alike. Empirical evidences, generally, support theoretical assertion that mean prices decline in most urban areas and increase in those markets that are located in surplus producing areas. The results also showed that market reforms lead to more price volatility.     

Technological change in health care: Why are opinions so divided?

This paper purports to explain the widespread scepticism towards technological change in health care in general and pharmaceutical innovation in particular in the face of very high estimated rates of social return. These estimates are based on observable market prices and quantities, which are used for measuring the additional consumer surplus induced by an innovation. They grossly overstate true surplus due to the effect of insurance, however. For true demand for health care services and hence true surplus depends on the net price a patient is willing to pay, which is a rather small fraction of observed market price. The paper also outlines the conditions under which a health insurer would welcome a pharmaceutical innovation.