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81.
Urban sociology has long ignored districts of wealth and privilege in cities because they harbor few ‘social problems’ and the class background of sociologists has not inclined them to venture there. In France after 1968, the continued attraction of Marxism and the sulfurous reputation of sociology conspired to make such investigation difficult. Pierre Bourdieu pioneered it with his landmark book on the bourgeoisie, Distinction: A Social Critique of the Judgement of Taste. This essay reports on two decades of research extending Bourdieu's model of social space to study the territories and strategies of the French high bourgeoisie and aristocracy. The dominant class lives in reserved upscale districts and this seclusion, resulting from the elective spatial aggregation of familial dynasties, is a fundamental characteristic of the group. Segregative isolation is strengthened by specific institutions, such as society balls and social clubs, entrusted with effecting class closure and perpetuation. But, in the greater Paris region, the best districts also attract businesses (corporate headquarters, luxury firms), and thus employment that prompts the established bourgeoisie to migrate westwards in an endless search for social exclusivity. In addition to their Paris homes, upper‐class dynasties possess family properties (a castle or a large manor house) in the provincial hinterland that serve as a basis for paternalistic forms of sociability, linking them to the local lower class via such institutions as riding to hounds. Spaces reserved by and for the high bourgeoisie are major vectors of social reproduction and, along with family and elite schools, help to train heirs suited to safeguarding and valorizing their inherited assets.  相似文献   
82.
Practitioners and researchers recognize that purchasing and supply management (PSM) contributes value to business performance beyond reported cost reductions, though capturing and evaluating such contributions is often challenging. The goal of this research is to understand roadblocks impeding the recognition of PSM's contributions beyond cost reduction, and suggest potential solutions to these challenges. Social identity theory offers a conceptual framework to study PSM's self-identity and how it is perceived by others in the organization. Gaining acceptance for value-added metrics is critical to move perceptions of PSM's contribution beyond cost reduction and achieve its full potential. Social identity theory is used as a lens to assess the data and develop propositions. Using a qualitative interview method, the researchers identified important roadblocks hindering PSM's attainment of a broader value-based perception. PSM's identity is closely linked to cost-savings by itself, other functions and upper management. These perceptions are further reinforced by PSM through excessive cost reporting metrics. We provide two suggested solutions for PSM to expand its recognition beyond cost savings: 1) PSM must change its narrative and associated self-identity; and 2) PSM needs to develop metrics that are meaningful across multiple areas of the business.  相似文献   
83.
Manual weeding is the predominant weed control practice and the most labor‐consuming activity in smallholder, rainfed rice systems in sub‐Saharan Africa. This study investigates the technical inefficiency of weeding labor, other labor, and overall inputs, and identifies sources of technical inefficiency of weeding labor in the context of parasitic weed infestation. The analysis applies a two‐stage approach. First, a directional input distance function DEA approach was used to compute input‐specific technical inefficiencies. Second, sources of technical inefficiency of weeding labor were identified using a truncated bootstrap regression. Data from 406 randomly selected smallholder farmers from Benin (n = 215) and Côte d'Ivoire (n = 191) were used. The technical inefficiency of weeding labor was high in both countries (58% in Côte d'Ivoire and 69% in Benin). This implies that a substantial fraction of weeding labor could be saved without reducing rice productivity or increasing the use of other inputs. A decrease in the technical inefficiency of weeding labor with an increase in production scale was observed. In addition, weeding regime and education level were each associated to significant changes in the technical inefficiency of weeding labor.  相似文献   
84.
Retail supply chains must be responsive to consumer demand and flexible in adapting to changing consumer preferences. As a result, suppliers are often expected to deal with time pressure demands from retailers. While previous research demonstrates that time pressure can have longer term relational costs that reduce collaborative behaviors and overall relationship quality, this mixed‐methods study goes further by accounting for attribution effects to explain why the time pressure occurs. Specifically, supplier perceptions for the reason of time pressure being within or beyond a retailer's control, rather than time pressure itself, appear to have a stronger effect on relational outcomes. By investigating time pressure through the lens of attribution theory, this research opens a new inquiry of research that moves away from examination of outcomes themselves (the “what”), to examining “why” the outcome occurred.  相似文献   
85.
Existing research on supply chain relationships suggests that one of the underlying tensions between supply chain partners is that of opposing perspectives and goals in the customer?supplier relationship. In today's business world with requirements in constant flux, suppliers are often asked to accommodate “special” requests made by their customers, not part of the contractual agreement. Suppliers frequently fill requests to protect the relationship with the customer, even if they fall outside of what they consider their role as a supplier. Issues of supplier role conflict emerge when customers and suppliers have different views of what the supplier's role should entail. There is little research examining the potential for supplier role conflict in supply chains. Specifically, this research draws on literature from multiple disciplines to consider supplier role conflict that may stem from accommodation and the impact of this role conflict and supplier accommodation on the supply chain relationship and future accommodation behavior. Hypotheses are tested using two scenario‐based experiments. Results suggest that supplier adaptation and flexibility both have positive relational effects. If suppliers perceive accommodation requests as outside of their contracted role, supplier role conflict can have detrimental effects on the supplier's relationship perceptions and their willingness for future accommodation.  相似文献   
86.
This paper discusses the main modeling approaches that have been developed for handling portfolio credit derivatives, with a focus on the question of hedging. In particular, the so-called top, top down and bottom up approaches are considered. We give some mathematical insights regarding the fact that information, namely the choice of a relevant model filtration, is the major modeling issue. In this regard, we examine the notion of thinning that was recently advocated for the purpose of hedging a multi-name derivative by single-name derivatives. We then illustrate by means of numerical simulations (semi-static hedging experiments) why and when the portfolio loss process may not be a ‘sufficient statistic’ for the purpose of valuation and hedging of portfolio credit risk.  相似文献   
87.
This paper is the first in a series that we devote to studying the problems of valuation and hedging of defaultable game options in general, and convertible corporate bonds in particular. Here, we present mathematical foundations for our overall study. Specifically, we provide several results characterizing the arbitrage price of a defaultable game option in terms of relevant Dynkin games. In addition, we provide important results regarding price decomposition of defaultable options. These general results are then specified to the case of convertible bonds, yielding in particular a decomposition of convertible bonds in an optional and a bond component.  相似文献   
88.
This paper provides a default-risky bond valuation model, which assumes that the issuer’s credit quality, modelled by the intensity of default, is driven by a continuous-time Markov chain. The model accounts for default and liquidity risk as well as incomplete information. A full-information semimartingale representation of a liquid defaultable bond price, which separates three different types of risks—default, interest-rate and credit-quality, is obtained. The illiquidity is modelled as exogenously specified stochastic reduction in the price of the bond, which adds more risks for the investors. A model of a market with partially informed investors, belonging to specific investor classes and having access to discrete information sets about credit quality, was specified. Valuations of defaultable bonds in this market were provided as well as price impacts of the new information releases.   相似文献   
89.
Summary This paper investigates the existence of competitive equilibria in dynamic exchange models with countably many periods and countably many agents. At each period the commodity space can be finite or infinite dimensional. The preferences of agents are not assumed to be transitive or complete. A first equilibrium existence theorem is established under the classical assumption that there exists a finite set of non-negligible agents. In the particular case of an overlapping generations model, a second existence theorem allows simultaneously for finite-lived assets and infinite-lived assets and limits the previous assumption to infinite-lived assets. This theorem covers obviously the standard case of an overlapping generations model where the agents have no endowment outside their lifetime.  相似文献   
90.
While the role and importance of marketing have grown in nonprofit organizations, marketing knowledge in nonprofit education organizations, specifically primary schools, is sparse. This paper reports the research findings of an exploratory study designed to examine the transfer of marketing knowledge to Catholic primary schools. It identifies and explores what school leaders know about marketing, how they acquire that knowledge, and what factors contribute to or impede its development. Qualitative data gathered from Catholic school educational leaders reveal that while marketing is viewed in schools as an important management function, marketing knowledge is slow to transfer. Findings reveal that marketing knowledge is primarily developed unintentionally, as a result of trial and error, and that a lack of formal marketing training results in a heavy dependence on volunteers. Findings also indicate that school leaders have minimal autonomy under the Diocese, which, along with economic, cultural, and structural barriers, functions to limit marketing knowledge development. It was also found that, although cross‐sector cooperation is desired among educational leaders, it is not pursued, further limiting the transfer of marketing knowledge. Theoretical and managerial implications for resource‐strapped primary schools in competitive environments are discussed.  相似文献   
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