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1.
Quality & Quantity - Compositional data with a tridimensional structure are not uncommon in social sciences. The CANDECOMP/PARAFAC model is one of the most adequate techniques for modeling... 相似文献
2.
This paper focuses on the vertical integration of knowledge-intensive business services (KIBS) into manufacturing sectors, using a subsystem approach to input–output analysis. It aims at correctly assessing the process of structural change that has occurred in the four main European countries (France, Germany, Italy and the UK) over time (1995–2005). It does not focus on KIBS sectors per se, but on their function as carriers and sources of knowledge which influences the performance of sectors, value chains and clusters across industries and within countries. The analysis shows that KIBS’ contribution to satisfying the final demand of manufacturing is in general largely underestimated; that KIBS vertical integration into manufacturing has increased over time in all the countries investigated except the UK; and that the extent to which manufacturing sectors outsource to KIBS is significantly affected by their technological intensity. 相似文献
3.
The Information Age has a surfeit of information received relative to what is processed. We model multiple sectors competing for consumer attention, with competition in price within each sector. Sector advertising levels follow a constant elasticity of substitution (CES) form, and within‐sector prices are dispersed with a truncated Pareto distribution. The “information hump” shows highest ad levels for intermediate attention levels. Overall, advertising is excessive, although the allocation across sectors is optimal. The blame for information overload falls most on product categories with low information transmission costs and low profits. 相似文献
4.
Service Business - Innovative new ideas are no longer bound by internal R&D efforts of the organisation. Many successful innovation ideas stem from external sources, especially engaged... 相似文献
5.
Marco A. Palma Alba J. Collart Christopher J. Chammoun 《The Journal of consumer affairs》2015,49(3):596-612
Increasing consumer demand for quality‐differentiated food products has given rise to a large quantity of food product classifications related to production practices and locations. Some food product claims such as native have no clear definitions and may have ambiguous connotations for different consumers. We analyze whether asymmetry in information affects consumer preferences and willingness to pay for ambiguous claims using the native attribute. An empirical application of pecans is used in the analysis to compare native and improved pecan varieties. With no evidence in the literature of additional benefits of native varieties, the results showed that consumers preferred native varieties. Furthermore tastes and preferences for all product attributes were heterogeneous; heterogeneity in preference for the native attribute was only significant at the 10% level. 相似文献
6.
Mogens Fosgerau Emerson Melo André de Palma Matthew Shum 《International Economic Review》2020,61(4):1569-1589
This article establishes a general equivalence between discrete choice and rational inattention models. Matějka and McKay (2015) showed that when information costs are modeled using the Shannon entropy, the choice probabilities in the rational inattention (RI) model take the multinomial logit form. We show that, for one given prior over states, RI choice probabilities may take the form of any additive random utility discrete choice model (ARUM) when the information cost is a Bregman information, a class defined in this article. The prior information of the rationally inattentive agent is summarized in a constant vector of utilities in the corresponding ARUM. 相似文献
7.
Nuno Palma 《The Economic history review》2018,71(2):373-392
This article provides a time series of coin and money supply estimates for six hundred years of English history. Two main estimation methods are proposed. The first (the direct method) is used to measure the value of government‐provided, legal‐tender coin supply only. Two varieties of the direct method are proposed. Additionally, an indirect method is proposed which relies on a combination of information about nominal GDP with an assumption regarding the evolution of velocity in time, and which can be used to calculate coin supply and M2. Both methods rely on benchmark values known for certain years, but no particular benchmark is determinant for the results. The new methodologies set out here may serve as a blueprint for a similar reconstruction of coin and money supply series for other economies for which analogous data are available. 相似文献
8.
Andre de Palma Fay Dunkerley Stef Proost 《Journal of Economics & Management Strategy》2010,19(1):223-258
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. 相似文献
9.
Susana Henriques Marques Maria Margarida Cardoso Ana Patrícia Palma 《International Review of Retail, Distribution & Consumer Research》2013,23(4):456-474
Given the intense competition experienced in the sector, retailers have been designing strategies to create an environment conducive to consumer satisfaction and purchase, particularly in supermarkets and hypermarkets. This paper develops a conceptualization of customer satisfaction based on field data collected in a specialty store, focusing on the relative importance of the environmental factors on satisfaction. The results show that the most important environmental determinant of customer satisfaction is the variety of products. The help from employees, lighting, layout and design also stand out from the set of stimuli considered. 相似文献
10.
Luis A. Ribera Mechel S. Paggi Marco A. Palma Ronald D. Knutson 《国际粮食与农业综合企业市场学杂志》2013,25(2):177-190
ABSTRACTThe Transatlantic Trade and Investment Partnership (T-TIP) negotiations influence the global economic position of both the European Union (EU) and the United States (U.S.). Agricultural issues are an important part of the negotiation. There have been several analyses of the aggregate impacts of a T-TIP agreement. This report analyzes the commodity impacts on trade for fresh vegetables and beef. Vegetables represent the situation where the U.S. is a growing net importer and the EU has substantial potential for expanding exports to the U.S. in this highly competitive marketplace. Beef represents the situation where sanitary and phytosanitary restrictions on hormone use in production have prohibited consumer choices from being revealed in the marketplace for both the EU and the U.S. The authors provide insight into where the comparative advantages lie in freer trade situations. 相似文献