首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 15 毫秒
1.
There is a widespread recognition of the desirability of broadening the scope of technology education with the objective of a form of technological literacy which would embrace social relations as well as technique. In 1990, Technology was introduced as a compulsory element of general education in England and Wales. Initially the curriculum gave equal weight both to the context as well as the content of technological activity, but subsequent revisions point the way back to an emphasis on technique and a narrower view of the role of the designer. In some respects, this simplifies the task of the technology teacher, and it might also be said to reflect the everyday realities of much technological activity. It is, however, an essentially conservative approach which tends to reinforce and legitimise attitudes which place a high value on technical performance while consigning the purposes and outcomes of technological activity to the shadows. It is argued that, for the sake of the future, it is essential that values in design and technology are brought up to the light. Technology teachers should take some responsibility for this, but cannot be expected to shoulder the whole burden.  相似文献   

2.
The invention of the price/cost margin (P-MC)/P as an index of market power is usually credited to Lerner (Rev Econ Stud 1(3):157?C175, 1934). Landes and Posner (Harv Law Rev 94(5):937?C996, 1981) is similarly often considered the main reference for the generalized version of the index in the case of a dominant firm that shares the market with price-taking rivals. From the viewpoint of the history of industrial economics both claims are incorrect. It was not Lerner who invented the price/cost margin index and the generalized version was fully derived before WWII. In both cases, priority should be given to Luigi Amoroso, the leading Italian mathematical economist in the interwar decades. In the latter case the names of Heinrich von Stackelberg and George Stigler also deserve credit.  相似文献   

3.
The optimal time to enter emerging industries is a key concern in strategy, yet scholars struggle to create a theoretical foundation that can integrate conflicting empirical findings. We incorporate categorical dynamics to industry life cycle theory to enhance existing entry timing theories. We introduce the concept of a dominant category—the conceptual schema that most stakeholders adhere to when referring to products that address similar needs and compete for the same market space—linking it to the dominant technological design and entry‐timing advantages. In particular, we propose the existence of a window of opportunity for firm entry that starts with the emergence of the dominant category and ends with the emergence of the dominant design. © 2013 The Authors. Strategic Management Journal published by John Wiley & Sons Ltd.  相似文献   

4.
The U.S. experienced a surge in foreign directinvestment (FDI) during the 1980s.To date, we do notfully understand what the research and development(R & D) effects of FDI are. FDI can affect the hostcountry's R & D activities in at least two ways. First,if domestic firms perceive foreign entrants as seriousthreats to their domestic market share, they willchange their R & D policies hence industry-wide R & Dintensity also changes. Second, the increase in R & Dintensity may be attributed to foreign firms' R & Dactivities to acclimatize to U.S. conditions. Using apanel of 4-digit SIC industries from 1981–91, there issome evidence that the latter scenario may be apossible explanation for the observed changes inindustry-wide R & D intensity.  相似文献   

5.
In this paper the determinants of entry and exitdecisions are analysed empirically on a sample of wellestablished business groups operating in Italianmanufacturing. The focus is on the role of sunk costsas entry barriers. Two competing hypotheses aretested. On the one hand, setup costs, R & D andadvertising outlays act as barriers to entry for bothnew and already established firms because of theirindustry-specific commitment value. On the other hand,they may induce established firms, which operate insimilar industries, to enter. This is the case if R & Dand advertising are firm-specific investments whichgenerate externalities to be efficiently exploited inadjacent industries. Overall results suggest that thesecond hypothesis gives a better picture of thebehaviour of our sample of firms.  相似文献   

6.
We establish a model of market competition between large and small firms and investigate the way in which demand substitutability affects how the entry of big firms impacts incumbents. We focus on the relative strength of two opposing effects of entry on large incumbent firms’ demand: the direct substitution effect among large firms (negative) and the indirect feedback effect through the change in small firms’ aggregated behavior (positive). If the substitutability between large and small firms is sufficiently high, the indirect effect dominates the direct effect and large incumbents’ equilibrium prices and profits increase. We show that welfare effects are ambiguous, which calls for careful assessment when regulating large firms’ entry.  相似文献   

7.
We study how the impact of capabilities for performance is contingent upon the environment. Using a novel dataset of information security start‐ups, we study how markets for technology change the relative impact of technology and marketing capabilities on performance. Since internal technical effort enables firms to generate technology inputs instead of acquiring them from the market (substitute), a greater supply of technology diminishes the importance of technical ability as a source of competitive advantage. Moreover, since marketing capability complements technology inputs, a greater supply of technology enhances the impact of marketing capability on performance. Copyright © 2011 John Wiley & Sons, Ltd.  相似文献   

8.
Auctions on the Internet: What’s Being Auctioned,and How?   总被引:24,自引:0,他引:24  
This paper is an economist's guide to auctions on the Internet. It traces the development of online auctions since 1993, and presents data from a comprehensive study of 142 different Internet auction sites. The results describe the transaction volumes, the types of auction mechanisms used, the types of goods auctioned, and the business models employed at the various sites. These new electronic-commerce institutions raise interesting questions for the economic theory of auctions, such as predicting the types of goods to be sold at auction, examining the incentive effects of varying auctioneer fee structures, and identifying the optimal auction formats for online sellers.  相似文献   

9.
The Federal Communications Commission is responsible for federal regulation in the telecommunications and electronic media sectors, and for management of the nation’s non-federal radio frequency spectrum. During the past year, Commission economists contributed to the agency’s ongoing efforts to use market-based mechanisms—such as auctions—to allocate spectrum and distribute universal service subsidies efficiently. This includes repurposing broadcast television spectrum for more efficient use by wireless service providers through the recently concluded Broadcast Incentive Auction and structuring auction mechanisms to promote efficient allocation of universal service subsidies for the increased build-out of mobile wireless and fixed broadband service in unserved and underserved areas.  相似文献   

10.
To be competitive, and become the industry leader, the firm needs to be fast, first, and on time, or so the story goes. Fast development cycle times, first to market, and schedule predictability are the three basic principles of new product development performance, but what does the evidence actually show? A review of current research, schedule performance data, and cycle time data shows that following these principles does not necessarily lead to success. Recent studies indicate that being first to market is not necessarily any better than being second, third, or even fifth. Several leading companies in the fast cycle time movement are rethinking their first-to-market strategy, and some are deliberately lengthening their cycle times. Finally, the correlation between schedule accuracy and business results is practically nonexistent in the product lines reviewed for this article. The evidence found while researching this article has led the authors to recast these three traditional principles into three new market-focused guiding principles: effective market introduction timing, first to mindshare, and managed responsiveness. To provide direction in applying these three principles, three types of market windows are defined: imposed, controllable, and emergent. How one approaches each of the three guiding principles is driven by which type of market window the organization is operating within, and other business characteristics, such as market position and the ability to differentiate.  相似文献   

11.
Technology and Design was introduced at Key Stage 3 for all pupils in Northern Ireland, as a result of the Education Reform (NI) Order in 1989. Central to the process of introducing this new and compulsory subject, the government spent in excess of £167M to make provision for the subject in all post-primary schools. This paper explores the perceptions of teachers of Technology and Design (known as Design and Technology in GB) in post-primary schools throughout Northern Ireland to the introduction and implementation of the subject. The methods involved a questionnaire survey to all teachers of Technology and Design throughout Northern Ireland (n = 587) and one-to-one interviews with 24. Findings suggest that teachers consider Technology and Design to be a worthwhile subject and believe that it adds much to the educational experience of the pupils involved. Nonetheless, there is general acceptance that difficulties surround the whole issue of subject definition and content delineation. As a consequence, significant demands are placed upon these teachers as they work to ensure that all pupils are given a worthwhile and valuable learning experience. These findings are discussed in terms of teachers’ perceptions of subject definition, delineation of subject content, the nature of the work involved and issues related to academic ability.  相似文献   

12.
13.
Agrofuels are increasingly sourced and sold as a socially and environmentally beneficial solution to oil dependence. The promotion of sugar‐derived ethanol as a substitute for petroleum has thus been key to state development and international trade policies by Brazil and the European Union, respectively, and subsequent investment by leading energy and food transnational corporations has transformed socio‐spatial relations in the new sites of production. Brazilian rural worker testimonies, however, point to large‐scale labour exclusion rather than reform and a deepening, rather than disruption, of historic power inequalities in the sector. Labour contestation challenges a converging institutional discourse of responsible technological innovation and social upgrading associated with emerging commodity chains and the ‘green’ economy. Although corporate and statutory response has been market‐orientated certification and ‘more technology’ the idea of the ‘techno‐institutional fix’ provides a power relation‐attentive analysis that invites the further exploration of socially committed alternatives to food and energy production.  相似文献   

14.
This article seeks to examine the relationship that exists between the development of high order thinking such as creative and problem solving skills and the need for pupils to achieve high levels of performance in their design and technology public examinations during the final year of compulsory education in the UK.The data under discussion were collected during the final year of a four year research project when a sample of fifty 15–16 year old pupils was chosen from eight schools in the north-east of England.For the purpose of this article a further sub-sample of twenty-seven pupils [twelve pupils who achieved high marks for their project work (sixty-five percent and above) and the fifteen pupils who achieved low marks in their project work (forty percent and below) was selected.In discussing the findings, the relationship between levels of creativity, performance, personal goal characteristics, motivation and design procedures used by the pupils will be highlighted. Conclusions will then be drawn concerning the part played by GCSE Design and Technology examination project work in enhancing the development of creative, innovative thinking and problem solving skills.  相似文献   

15.
That prominent antitrust cases have been in the “high-tech” arena is not surprising, since high-tech industries are often susceptible to the scale economies that lead to highly concentrated or monopoly markets. Crandall and Jackson’s observations on the IBM case are on point. Regarding AT&T, the salient observation is that recent changes in legal doctrine may make it impossible to bring antitrust cases in regulated industries. The problem with the Microsoft case was not that it was right or wrong, but that it was fundamentally incoherent. Wright’s critique of the Federal Trade Commission’s case against Intel is problematic because buyers in exclusion cases tend to be better off, not victims as they would be under collusion or anticompetitive mergers. As these observations apply more generally to cases in sectors that are not associated with high-tech, I offer a few thoughts on some antitrust issues that are particular to high-tech sectors, specifically how the prospect of innovation could affect market definition in merger cases and, more broadly, whether dynamic efficiencies reduce the need for antitrust enforcement.  相似文献   

16.
In this paper we study the impact of the regulations on Maximum Residue Levels (MRLs) of pesticides on the trade of apples and pears and related processed products with the aim of understanding how their similarity (or dissimilarity) affect trade. Most studies investigate the impact of sanitary regulations introducing directly in the analysis the MRL put in force in the importing country. They introduce in the analysis the level of the regulation in the importing country without taking into account the rule in force in the exporting country. Rather than focusing on a particular pesticide we take into account the entire list of substances set out by the various regulations. We then build a similarity index and introduce it into a gravity equation to assess the impact of the differences in MRL of pesticides on trade. Results suggest that the differences between regulations matter and may, in some case, hinder trade.  相似文献   

17.
18.
19.
We present field evidence concerning experienced bidders that supports the linkage principle—specifically, the prediction that in affiliated‐values auction environments the expected revenues generated at open‐outcry, ascending‐bid auctions are higher than those under auction formats that reveal less information to participants. Using field data from a large seller of automobiles who experimented with different selling formats, we have found that average revenues were significantly higher under an English auction than under a dynamic Internet auction format that revealed less information to bidders.  相似文献   

20.
Multilayered conformity-assessment systems (MCASs) are becoming an increasingly prominent governance mechanism in food and agriculture. MCASs maintain their legitimacy through the use of scientific norms and practices, as well as multiple tiers of oversight. The purported outcome is standardized conformity-assessment practices, and thus, standardized food and production practices regardless of location or producer. This article examines the ability of MCASs to enforce one form of zero tolerance standards: organics (i.e., zero-synthetic chemicals). The focus is on the governance of organic standards in the rural Indonesia, where the idea of zero tolerance is historically foreign. Drawing on a case study of an organic shrimp project in Indonesia, the ways that the social, economic, and cultural conditions of the global South affect the operations of a MCAS and the capacity of the MCAS to adapt to such conditions are examined. My findings raise questions as to the capability of MCASs to ensure standardized food governance globally.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号