Market-structure Determinants of National Brand–Private Label Price Differences of Manufactured Food Products: Comment

Conor and Peterson [1992] analysed structural behavioural characteristics explaining differences in price between competing national and private label brands of manufactured food products. Hinloopen and Martin's comment points out an error in reporting results and an ambiguity in variable construction, and also comment on the interpretation of regression results. Connor and Peterson reply.     

The Nature and Benefits of National Brand/Private Label Competition

The article highlights the history of national brand/private label competition. Itargues that the private labels of large retail chains possess unique competitiveweapons to constrain the market power of powerful national brands that are notavailable to rival manufacturers' brands. Consumer welfare is maximized whenprivate labels and national brands compete vigorously rather than when eitherone is too dominant. There is some ominous recent evidence that the vigor ofnational brand/private label competition is sometimes being diminished bycollusion between the two kinds of brands.     

Private Labels,National Brands and Food Prices

We study the relationships between national brand prices and the development of private labels, using home-scanned data from a consumer survey reporting purchases for 218 food products. When the impact of private label development is significant (116 cases out of 218), we observe a positive correlation (89%) between brand price and purchases of private labels. When controlling for changes in product quality, we still find a positive relation between private label development and national brand prices. Thus, the change in the national brand product characteristics only partly explains the increase in the national brand prices. Furthermore, the price reactions of national brands differ according to the type of private labels they face. Finally, we demonstrate that the development of private labels has less effect on the prices of second-tier brands than on the prices of the leading brand.      

Market Share and Price Setting Behavior for Private Labels and National Brands

In this paper, we focus on the nature of demand and competitive response in the market for private label and national branded grocery products. Specifically,we employ less restrictive functional forms than usedin prior research. Specifically, we incorporateLA/AIDS demands and the corresponding price reactionequations to estimate consumer price sensitivities andsupply side price strategies for national brand andprivate label products. Oligopolistic priceinterdependence is explored further by specifyingbrand share, brand Herfindahl, and a measure of thestructure of the local retail markets in the supplyside relations to evaluate explicitly the impact ofmarket structure.In our empirical analysis, we estimate a system of market share and price equations simultaneously inorder to examine (i) the determinants of the demandresponse to pricing and promotion decisions and (ii)the determinants of private label and national brandpricing behavior. Using data for 143 food productcategories and 59 geographic markets, we develop amodel that captures the variation in privatelabel-national brand share and pricing acrosscategories and markets. Key findings include: (i)demand response to price and promotion is decidedlyasymmetric, (ii) price followship between privatelabels and national brands is positive, but notstrong, and (iii) markets characterized by highernational brand market share and higher supermarketconcentration tend to have higher prices forboth national brands and private labels.     

An Empirical Study of the Effect of Brand Proliferation on Private Label – National Brand Pricing Behavior

This paper investigates the competitive pricing interaction between national brand and private label food products, focusing on the effect of brand proliferation. IRI scanner data from 1991 and 1992 for 135 food product categories and 59 geographic markets are used. Empirical findings are grouped into three categories: i) price, promotion and competitive effects, ii) brand proliferation and entry deterrence, and iii) local market effects. Results indicate that both private label and national brand reaction functions are positively sloped and asymmetric. Successful private label penetration, as measured by total private label share, lowers the average price of national brands. The paper's central finding is that the impact of brand proliferation on market pricing behavior is multi-dimensional. First, an increase in the number of brands increases the ability of national brand manufacturers to raise price. Second, the effectiveness of a brand proliferation strategy depends upon the distribution of market share. The more concentrated the brand structure, the lower the market price of national brands. Thus, the net effect of brand proliferation strategies is dependent upon not only the number of brands, but upon the actual distribution of brand shares. Finally, local market conditions play only a small role in the competitive interaction between private labels and national brands.     

Cross‐National Analysis of Gender Differences in Job Satisfaction

Research over the past two decades has found significant gender differences in subjective job satisfaction, with the result that women report greater satisfaction than men in some countries. This paper examines the so‐called “gender paradox” using data from the European Social Survey for a subset of fourteen countries in the European Union. We focus on the hypothesis that women place higher values on certain work characteristics than men, which explains the observed differential. Using estimates from Probit and ordered Probit models, we conduct standard Blinder–Oaxaca decompositions to estimate the impact that differential valuations of characteristics have on the gender difference in self‐reported job satisfaction. The results indicate that females continue to report higher levels of job satisfaction than do men in some countries, and the difference remains even after controlling for a wide range of personal and job characteristics and working conditions. The decompositions suggest that a relatively small share of the gender differential is attributable to gender differences in the weights placed on working conditions in most countries. Rather, gender differences in job characteristics contribute relatively more to explaining the gender–job satisfaction differential.     

食品包装膜展露6张新面孔

食品塑料包装是包装材料领域中最为活跃的分支之一。随着人们对生活质量和食品安全要求的不断提高，对食品包装的功用性提出了越来越多的要求和越来越高的标准。在这一背景下，世界各国对食品包装用塑料薄膜新品种的开发也十分活跃，以最大限度地满足市场的个性化需求。     

Family Structure and Family Earnings: The Determinants of Earnings Differences among Family Types

Mean total family earnings differ greatly by family structure (the number, age, and gender of adults, and the presence or absence of children and dependent elders). This study classifies families into seven major types by structure, and analyzes inequality in mean earnings among these types. Differences in mean earnings among types depend primarily on the amount of labor supplied to the labor market. The quantity of labor supplied, in turn, while reflecting in part differences in the head's characteristics (such as human capital), is largely determined by family structure. Earnings changes by family type over time from 1973 to 1987 are also discussed.     

The Impact of Private Label Introduction on Assortment,Prices, and Profits of Retailers*

We study how introducing private-label brands (PLs) affects retail prices and profits, accounting for assortment adjustments of national brands (NBs). We employ an event-study framework and scanner data on the US beef market. When a PL is added to the low-priced market segment, we find that retail stores further differentiate NBs from the PL and remove same-segment NBs. When a PL is added to the high-priced segment, however, NB assortment changes are limited. PL introduction and PL-driven NB assortment changes impose small price effects on NB, but strongly cannibalize NB demand and steer consumers toward PLs, likely increasing store profits.     

2001年第四季度国内成品油价格走势分析

2000年第四季度以来，在国内成品油资源供应持续增加与国际油价下滑的双重作用下，国内成品油价格总体上持续下跌。截止到今年8月份，全国平均汽油和柴油的零售中准价已分别累计下调1077元／吨和482元／吨。据不完全统计，今年1－8月全国汽柴油市场实际批发价平均分别为3200元／吨和2900元／吨左右，比去年同期高出60元／吨和80元/ 左右。8月份汽柴油市场平均批发价为2850元／吨和2900元／吨左右，分别比去年同期下降了800元／吨和300元／吨，即降低了20％和10％。今年后四个月国内成品油价格是继续走低还是出现反转，这不仅涉及众多经营者与消费者切身利益，而且也受到了国家有关部门的关注。     

新加坡市场主要油品现货价格走势图

5545352515美元/桶2003年 86 7 8 7 10 2 3 4 5 9 11 12 12004年汽油航煤柴油新加坡市场主要油品现货价格走势图     

新加坡市场主要油品现货价格走势图

~~新加坡市场主要油品现货价格走势图     

新加坡市场主要油品现货价格走势图

~~新加坡市场主要油品现货价格走势图     

The Role of Early Adopters in the Diffusion of New Products: Differences between Platform and Nonplatform Innovations

This paper takes a contingency view to investigate how the role of early adopters (EAs) in the diffusion process changes between platform and nonplatform innovations, what launch decisions firms take to leverage the role of EAs, and how these decisions change between platform and nonplatform innovations. Relying on an exploratory multiple case study of eight industrial product innovations launched in Italy in the 2000s, the paper suggests that the EAs of these innovations play two distinct roles in the diffusion process. The first role, called dissemination, sees EAs triggering and bolstering the propagation of information regarding their opinion about the value for money, properties, advantages, and disadvantages of the new product after they have bought and applied it in their operations. The second role, labeled imitation, consists of EAs inadvertently communicating to later buyers the fact that they have bought the new product, which propels imitative behavior and thus subsequent adoption. A key finding of the paper, which supports a contingency view of innovation diffusion, is that the dissemination role played by EAs has an impact on the adoption of platform innovations, whereas the imitation one is the mechanism through which EAs stimulate subsequent adoption in the case of nonplatform new products. Furthermore, the paper's results point to a constructive view of the process of launching an innovation, whereby firms target at launch different segments of EAs, whose identity is shaped depending on the platform versus nonplatform nature of the innovation and thus on the role they are expected to play in the diffusion process. Concerning managerial implications, this study provides a first tentative understanding of the launch decisions that product and marketing managers may use to target the most appropriate segments of EAs, to leverage their roles and ultimately to favor diffusion. As regards platform innovations, targeting decisions should be driven by the goal to improve the chances that EAs will be willing to disseminate their experience and opinion regarding the new product. As regards instead nonplatform innovations, firms should target EAs whose specific characteristics increase the likelihood of an imitative reaction by later buyers that fear to suffer a competitive disadvantage if they do not conform to EAs' behavior.     

Work Pressure in Europe 1996–2001: Trends and Determinants

Diverse theories have predicted a trend towards growing work pressure in advanced capitalist societies, while pointing to quite distinct causal factors. This paper seeks to assess these arguments using data from two surveys of employees in European Union member‐states carried out in 1996 and in 2001. It finds there is no evidence of a trend towards higher work pressure over this period. There is, however, support for some of the main arguments about the types of factors that affect work pressure: for instance, skill, job control, new technology and current job security are clearly important. But the trends in job control and job security have not been those predicted, while changes in another major determinant — the length of working hours — have tended to reduce work pressure. There are substantial and relatively stable differences in work pressure between countries, but to a considerable extent, these reflect compositional differences with respect to the main determinants of work pressure.