Price Discrimination and Efficient Distribution

This paper focuses on third‐degree price discrimination by an upstream firm with some degree of monopoly power. Downstream firms fall into two categories: efficient and inefficient, according to their relative costs of transforming a unit of the upstream good into a unit of final product. Under ordinary static conditions, price discrimination favors the inefficient firms, which have more elastic demands. We consider, however, the possibility that discrimination in the opposite direction can alter the downstream market structure toward greater efficiency. Discriminatory pricing, then, involves charging a higher price to the less efficient firms. Such pricing is shown to be both potentially profitable for the upstream firm and welfare improving as average consumer prices fall.     

Macroeconomic Effects of Commodity Price Shocks in a Low‐income Economy: The Case of Tobacco in Malawi

A major concern for developing economies is a dependence on commodities when their prices are volatile as a major change in the international commodity price can have important implications for economic growth. While some cross‐country studies exist, there is lack of country specific studies that take into account the different characteristics of low‐income economies. This paper contributes to the growing literature by considering the case of Malawi and the macroeconomic impact of price shocks in its major export crop of tobacco. Using a structural vector autoregression (SVAR) approach on quarterly Malawian data from 1980:1 to 2012:4, the paper establishes that a positive tobacco price shock has a significant positive impact on the country's gross domestic product, decreasing consumer prices and inducing real exchange rate appreciation. The results are robust to alternative specifications of a SVAR on difference stationary data and cointegrating VAR. The cointegrating VAR confirms the existence of a long run‐relationship among the variables and causality that runs from tobacco prices.     

PRICE‐SETTING BEHAVIOR IN TURKISH INDUSTRIES: EVIDENCE FROM SURVEY DATA

This study investigates the price‐setting behavior of Turkish industries based on the results of a survey that was conducted by the Central Bank of the Republic of Turkey. The results show that, under normal conditions, the majority of the firms follow a time‐dependent pricing rule but when significant events occur a substantial fraction of them alter their behavior to state‐dependent reviewing. The median Turkish firm reviews its prices every month, but changes its prices four times a year. Price reviews and changes are affected by: the market share, price discrimination, customer type, firm size, and the existence of regulated prices.     

Does quality differentiation matter in exporters' pricing behaviour? Comparing China and India

The product quality dimension has been rarely mentioned as a factor explaining the heterogeneous pricing strategies of exporters. This could underestimate the degree of mark-up adjustment and the extent of incomplete exchange rate pass-through (ERPT) at a disaggregated level across products and destination markets. This paper investigates the role of quality differentiation in price discrimination using data for China and India's exports disaggregated at the 6-digit product level across destination markets. The paper adopts an empirical approach that incorporates gravity model explanatory factors and allows disentangling the effect of quality on trade prices and volumes from that of other sources of price variation. After excluding short duration export spells, China's export prices denominated in foreign currency terms increase with the yuan's depreciation, implying an increase in exporters' mark-ups, but they decrease as expected in the case of India. However, mark-up increases decline with product quality and destination market income, as the elasticity of demand perceived by exporters increases. These findings remain robust to different measures of quality, samples, specifications, and to the potential endogeneity of quality.     

Two-Part Pricing with Costly Arbitrage

This paper considers the optimal two-part pricing strategy of a monopolist whose customers collude when they purchase the firm's product. In contrast to the sentiment in the existing price discrimination literature, I find that a monopolist's profit can actually increase when consumers share its good. When transaction costs for collusion are zero the firm can extract the full consumer surplus through two-part prices. When transaction costs are positive or there are a substantial number of consumers without access to resale, the firm may be hurt by arbitrage.     

Pass-through Effects of Global Commodity Prices on China＇s Inflation： An Empirical Investigation

The present paper uses a two-step approach to estimate the pass-through effects of changes in international commodity prices and the RMB exchange rate on domestic consumer price inflation in China. We first estimate the pass-through effects of international commodity prices on producer prices and then estimate the pass-through effects of producer price inflation on consumer price inflation. We find that a l O-percent increase in international commodity prices would lead to China＇ s producer prices increasing by 1.2 percent 3 months later, which in turn would increase China＇ s domestic inflation by 0.24 percent over the same period. However, a 10-percent appreciation of the RMB exchange rate against the US dollar would help to reduce increases in producer prices by 4.4 percent over the following 3 months, which in turn would lead to a 0. 89-percent decline in consumer price inflation over the same period. Our findings suggest that appreciation of the RMB in an environment of rising global commodity prices and a weak US dollar could be an effective instrument to help contain inflation in China.     

WATER BILL ESTIMATION WHEN PRICE IS CRYPTIC: EXPERIENCE FROM WINDHOEK,NAMIBIA

For water policy to be effective, policy makers must know how water users perceive and respond to changes in water prices. However, it is not uncommon for water prices faced by consumers to be unclear. In Windhoek, Namibia, the marginal and average water price is difficult to calculate from the information provided in users' utility bills. This paper applies a hedonic pricing approach to investigate price perceptions of water users in a setting with cryptic price information. Using self‐reported water charges as the dependent variable, the pricing model utilises reported utility characteristics and other factors that may affect perceived price. Low‐income standpipe water users report a weighted average monthly charges of N$24.68, whereas users in high income segments report N$521.34. This reflects differences in service levels, possible subsidies to low‐income users and potential errors in respondents' understanding of their water price. Average price per litre (N$11.78 for the low‐use segment; N$1.89 for the highest segment of Tier 1 water use) tends to be perceived as higher by those with lower water use even though average prices in the relevant range should generally be identical.     

Throwing the Books at Them: Amazon's Puzzling Long Run Pricing Strategy

Firms competing for consumers to adopt new platforms have incentives to charge low prices to promote adoption, followed by higher prices later on. This study explores Amazon's dynamic pricing strategy by comparing its contemporary pricing on e‐books, a relatively new product with complementary hardware and switching costs, with its pricing on physical books, a now‐mature product without complementary hardware or switching costs. Using over 150,000 hourly observations on prices and sales ranks for electronic and physical bestseller books between 2012 and 2013, in conjunction with actual quantity data, we estimate the price elasticities of demand for books at Amazon. Despite inherent challenges in data availability and measurement, we find it surprising that both electronic and physical book prices fall substantially short of the static profit maximizing level two decades after Amazon's launch. These findings raise questions for both policymakers and shareholders.     

Relating Product Prices to Long‐Run Marginal Cost: Evidence from Solar Photovoltaic Modules

A basic tenet of microeconomics is that for a competitive industry in equilibrium the market price of a product will be equal to its marginal cost. This paper develops a model framework and a corresponding empirical inference procedure for estimating long‐run marginal cost in industries where production costs decline over time. In the context of the solar photovoltaic (PV) module industry, we rely primarily on firm‐level financial accounting data to estimate the long‐run marginal cost of PV modules for the years 2008–2013. During those years, the industry experienced both unprecedented price declines and significant expansions of manufacturing capacity. We compare the trajectory of average sales prices with the estimated long‐run marginal costs in order to quantify the extent to which actual price declines were attributable to reductions in production costs. The trajectory of estimated product costs is then extrapolated to forecast an equilibrium trend line for future PV module prices.     

Costly Buyer Search in a Differentiated Products Model: An Experimental Study

This study examines whether the content of buyer information and the timing of its dissemination affects seller market power. We construct laboratory markets with differentiated goods and costly buyer search in which sellers simultaneously post prices. The experiment varies the information on price or product characteristics that buyers learn under different timing assumptions (pre‐ and postsearch), generating four information treatments. Theory predicts that price information lowers the equilibrium price, but information about product characteristics increases the equilibrium price. That is, contrary to intuition, the presence of informed buyers may impart a negative externality on other uninformed buyers. Data support the model's negative externality result when sellers face a large number of robot buyers that are programmed to search optimally. Observed prices conform to the model's comparative statics and are broadly consistent with predicted levels. With human buyers, however, excessive search instigates increased price competition, and sellers post prices that are significantly lower than predicted.     

Sequential Solutions to Capacity‐Planning and Pricing Decisions*

Ideally, firms should jointly solve capacity‐planning and product‐pricing problems. In practice, informational limitations and cognitive bounds may force firms to sequentially solve the two problems. For example, a firm may plan capacity using limited demand information, and update prices subsequently once additional demand information becomes available. In a simple setting, we characterize the economic loss due to such sequential planning. We use simulation experiments to assess the extent of this loss in more complex settings. We find a relatively low loss if the firm plans for capacity using limited demand information and subsequently adjusts product prices to reflect realized market conditions. However, even “reasonable” restrictions on the subsequent price adjustment (e.g., constraining adjusted prices to always exceed full cost) lead to significant economic loss.     

Revisiting the Exchange Rate Pass‐Through to Inflation in Africa’s Two Largest Economies: Nigeria and South Africa

This paper revisits the exchange rate pass‐through (ERPT) to inflation in Nigeria and South Africa by incorporating structural breaks and using time series variables, namely the consumer price index, nominal effective exchange rate, gross domestic product, and crude oil price. Based on the Maki cointegration test and a flexible estimation approach of the Autoregressive Distributed Lag (ARDL) model, our empirical evidence suggests that the long‐ and short‐run ERPT to inflation is complete for Nigeria, while for South Africa it is incomplete both in the long run and short run. This result indicates that prices are stickier in South Africa compared to Nigeria. The comparison between Nigeria and South Africa confirms the role of inflation targeting and central bank credibility on the ERPT. The results divulge further that output growth in Nigeria increases inflation in the long run while it is anti‐inflationary in the short run. For South Africa, the effect of output growth is negatively insignificant. In addition, the long‐run effect of oil price is negative and significant for Nigeria, while for South Africa the short‐run effect of oil price is positive and significant. Therefore, the findings of this paper will assist the monetary authorities to achieve monetary policy objectives.     

Markups and export-pricing strategies

We analyze empirically export-price strategies across export destinations using detailed firm-product data. Most recent studies using disaggregated data to investigate why firms charge different prices for the same product on different markets focus on the cost component of prices and neglect the markup component. In this paper, we concentrate on the markup component and examine how variations in firms’ export prices may reflect price discrimination by comparing the markup of firms with different pricing strategies. We make use of detailed firm-level data for exporting firms in the Swedish food sector consisting of both manufacturing and intermediary trading firms. The paper documents the export-price variations within the two sub-sectors and explores how different price strategies correlate with markups. The results offer new information beyond the fact that exporters tend to have a higher markup. In particular, we find that firms in the food-processing sector with a greater ability to discriminate across markets mark their products up even more. This result points to the importance of underlying firm decisions in order to explain differences in export premiums across firms. In addition, the results reveal that markups are a complex function of firm and destination characteristics, and that the relationship between markups and pricing strategies in the manufacturing sector is not necessarily observed in other sectors of the supply chain.     

Inflation in developing Asia: pass‐through from global food and oil price shocks

The world economy experienced a sharp spike in food and oil prices during 2007 and 2008. In light of developing Asia's dependence on imported oil and food, we can expect higher global food and oil prices to result in higher domestic consumer prices in the region. However, the actual impact of the global commodity shocks on consumer price inflation in developing Asia depends on a number of other factors, including government policy measures. The objective of this paper is to examine empirically the extent of the pass‐through of global food and oil prices to domestic consumer prices in nine countries in the region. The main empirical result is that the magnitude of the pass‐through has been limited. Government policy measures, for example, subsidies and price controls, played a role in reducing or delaying the pass‐through of oil and food price increases to domestic prices.     

Price Discrimination in the Subscription Market for Economics Journals

We examine what factors affect the degree of price discrimination for an academic journal by analyzing data on 190 of the 208 economics journals indexed in the 2008 edition of Journal Citation Reports. We find that (i) the library‐to‐individual price ratio of a for‐profit journal is 37% higher than that of a comparable nonprofit journal because the price premium of a for‐profit journal in the library market is disproportionately larger than that in the individual market, (ii) journals with higher citations per page or impact factor are more price discriminatory, and (iii) Elsevier and Wiley‐Blackwell practice the highest degree of price discrimination of all publishers.     

Price adjustment after hyperinflation in Zimbabwe

This paper examines—post‐dollarization in Zimbabwe—the extent of price dispersion within Zimbabwe and between Zimbabwe and South Africa. We document the adjustment process, and the mechanisms of price adjustment after the introduction of the new currency system in Zimbabwe. We show that prices converged post‐dollarization. We argue that the fall in price dispersion is not a product or a Southern Africa region effect. Rather it is a Zimbabwe specific effect and given that price convergence happens quicker the closer the month is to the dollarization, we argue that the observed results are driven by the change in currency. Price dispersion happens faster between major cities and secondary cities, suggesting improvements in information and trade signals between major and secondary cities. These results suggest that the positive effects of a stable currency fall disproportionally on secondary cities, implying price stability not only has macroeconomic benefits, but also developmental benefits since secondary cities and rural areas are on average, poorer than main cities.     

How Aid Tying Can Impose Additional Cost on Aid Recipients: Evidence on Ghana

Abstract: This study investigates the prices of tied foreign aid imports by estimating the price differentials between tied aid imports and non‐aid imports from bilateral sources to Ghana. The study finds a significant mark‐up on the prices of tied aid imports relative to non‐aid imports, which translates into substantial cost to Ghana. Several reasons, both in Ghana and in the donor countries, could be found for the estimated price differentials. Ghana needs to take steps to improve its investment climate, as a way of reducing investment risk, which in turn will enhance the confidence of export financiers to reduce the incentive to mark up prices of tied commodities. On the part of donor countries, there may be need to examine the market for the supply of aided commodities towards the liberalization of such markets. It is suggested that although the higher costs on tied imports may be a necessary price Ghana had to pay to obtain aid, the associated cost provides a case for the cancellation of the bilateral aid debt to Ghana.     

Competing with Costco and Sam's Club: Warehouse Club Entry and Grocery Prices

Prior research shows that grocery stores reduce prices to compete with Walmart Supercenters. This study finds evidence that the competitive effects of two other big‐box retailers—Costco and Walmart‐owned Sam's Club—are quite different. Using city‐level panel grocery price data matched with a unique data set on Walmart and warehouse club locations, we find that Costco entry is associated with higher grocery prices at incumbent retailers and that the effect is strongest in cities with small populations and high grocery store densities. This is consistent with incumbents competing with Costco along nonprice dimensions, such as product quality or quality of the shopping experience. We find no evidence that Sam's Club entry affects grocery stores' prices, consistent with Sam's Club's focus on small businesses instead of consumers.     

Price‐Match Announcements in a Consumer Search Duopoly

Using a model of sequential search, we show that announcements to price‐match raise prices by altering consumer search behavior. First, price‐matching diminishes firms’ incentives to lower prices to attract consumers who have no search costs. Second, for consumers with positive search costs, price‐matching lowers the marginal benefit of search, inducing them to accept higher prices. Finally, price‐matching can lead to asymmetric equilibria where one firm runs fewer sales and both firms tend to offer smaller discounts than in a symmetric equilibrium. Price increases grow in the proportion of consumers who invoke price‐matching guarantees and in the level of equilibrium asymmetry.     

Price discrimination across different ticket distribution channels: Evidence from the US-china flight market

In the US-China international flight market, airlines sell tickets in two different distribution channels at vastly different prices. This provides a rare opportunity to examine how airlines practice price discrimination across different ticket distribution channels. Using a unique dataset collected from this market, we find that price discrimination across different ticket distribution channels is not influenced by market competition but increases with demand.