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1.
This paper studies the consequences of network externalities on R&D rivalry between an incumbent firm and a potential entrant. In the model, all differences between the R&D projects chosen in market equilibrium and the socially best projects are solely due to network externalities. From a welfare perspective, the incumbent chooses a too risky and the entrant a too certain R&D project. Rothschild and Stiglitz's mean preserving spread criterion is used as a measure of risk. Adoption of a new standard is more likely in equilibrium than in the social optimum.  相似文献   
2.
What are the long-term effects of universal preschool programs on child outcomes? We review 26 studies using natural experiments to estimate the effects of universal preschool programs for children aged 0–6 years on child outcomes measured from third grade to adulthood. Studies comparing universal preschool with a mix of parental, family, and private modes of care show mixed effects on test scores and on measures related to health, well-being, and behavior. All estimates for outcomes related to adequate primary and secondary school progression, years of schooling, highest degree completed, employment, and earnings indicate beneficial average effects of universal preschool programs. Three of the included studies calculate benefits-to-costs ratios and find ratios clearly above one. Universal preschool tends to be more beneficial for children with low socioeconomic status and there are not consistently different effects for boys or girls. Only three studies compare two alternative types of universal preschool programs in terms of long-term outcomes.  相似文献   
3.
Licensing promotes technology transfer and innovation, but enforcement of licensing contracts is often imperfect. We model contract enforcement as a game with perfect information but probabilistic enforcement and explore the implications of weak enforcement on the design of licensing contracts, the conduct of firms, and market performance. An upstream firm develops a technology that it can license to downstream firms using a fixed fee and a per‐unit royalty. Strictly positive per‐unit royalties maximize the licensor's profit if competition among licensees limits joint profits. With imperfect enforcement, the licensor lowers variable royalties to avoid cheating. Although imperfect contract enforcement reduces the profits of the licensor, weak enforcement lowers prices, increases downstream innovation, and in some circumstances can increase total economic welfare.  相似文献   
4.
We derive empirical implications from a theoretical model of bank–borrower relationships. The interest‐rate mark‐ups of banks are predicted to follow a life‐cycle pattern over the age of the borrowing firms. Because of endogenous bank monitoring by competing banks, borrowing firms initially face a low mark‐up, and thereafter an increasing mark‐up as a result of informational lock‐in, until it falls for older firms when the lock‐in is resolved. By applying a large sample of predominantly small unlisted firms and a new measure of asymmetric information, we find that firms with significant asymmetric‐information problems have a more pronounced life‐cycle pattern of interest‐rate mark‐ups. Additionally, we examine the effects of concentrated banking markets on interest‐rate mark‐ups. The results indicate that the life cycle of mark‐ups is mainly driven by asymmetric‐information problems and not by concentration. However, we find evidence that bank market concentration matters for older firms ? 2 Correction added after online publication on 20th February 2012; the original text read ‘However, we find evidence that bank market concentration for older firms’, omitting the word ‘matters’.
  相似文献   
5.
‘Clean and green’ has been used as a marketing tool by Australian governments to promote agricultural products overseas. But how valid are these claims? Is the ‘clean and green’ image campaign effective? And should government be involved? We conclude that Australia may have had a ‘clean and green’ image in some markets, but in the future, concrete proof of environmental and quality credentials will be required to satisfy increasingly better‐informed and more demanding customers. We argue that governments cannot, and should not, continue to promote Australian products based on an undefined ‘clean and green’ image. Rather, more resources should be directed to the development, promotion and wide adoption of integrated, credible and well‐defined environmental management and quality assurance systems if Australia is to compete effectively in export markets, especially in the longer term.  相似文献   
6.
This research focuses on the impacts of traditional systems of land distribution among households, clans, and the government in two of Indonesia’s poorest provinces: East Nusa Tenggara and Maluku. Our main goal is to discuss and propose alternative ways of dividing and governing productive land to meet new needs in the management of agriculture and forestry. We apply a mixed research methodology that includes in-depth discussions with more than 50 key informants and survey interviews with 640 randomly selected respondents. We find that the number of land conflicts is rising, that land privatisation is becoming increasingly relevant, and that communal land ownership tends to lead to land under-utilisation rather than to natural resource overuse and environmental degradation. We argue that economic gains can be made by changing land-use patterns and land user rights. Our policy recommendations include introducing formalised and taxable clan land ownership with specified and registered family user rights.  相似文献   
7.
R&D incentives in compatible networks   总被引:2,自引:0,他引:2  
Network externalities describe the phenomenon that a good becomes more valuable to each user the more other consumers use the same or a compatible troduct. Whereas most of the recent literature on network effects has focused on the adoption of products, this paper shows that network externalities can have important feedback effects on the incentives to carry out R&D and develop new products. Even if the products are compatible, network effects can lead to strategic overinvestment or underinvestment. The firms' R&D decisions are compared with the socially optimal ones.  相似文献   
8.
The aim of this research is to identify channels of information flows and their impact on business adaptation and survival. The analysis is set within a theoretical framework of information market failure and information flows. The paper draws on empirical data from a survey comprising approximately 400 small-scale entrepreneurs in dressmaking and woodworking industries at different levels of centrality in four regions in Tanzania. The data reveal that half of the businesses are growing and one-third have increased profitability by significant adaptations last year. Most changes occur in products and design. Customers and the media represent the most important sources of business information, followed by family members and business partners. Independent variables that significantly influence adaptability include customer relations, education, media exposure, social networks, and mobility. Associations are strongly modified by the entrepreneurs’ age and gender and by businesses’ size and location. The paper concludes that cottage industries in Tanzania have a remarkable ability to survive. Garment and woodwork markets are still predominantly local and competition from external businesses is limited. Access to business information and new ideas should be improved, however, to counteract growing competition from the modern sector.  相似文献   
9.
This article estimates the effect of international migration from Mexico to the United States on the obesity status of children who remain in Mexico. Theory suggests that increased liquidity as well as changing time allocations resulting from migration may influence obesity outcomes. Natural disasters are used as an identification strategy. Results suggest that older boys in urban areas are more likely to become obese when either a male or female migrates from the household, while girls in urban areas are less likely to become obese. Both changes in food expenditure patterns and time use changes after migration are likely pathways that affect childhood obesity. While there are some changes in food expenditures, we find more importantly that urban girls engage in more housework and screen time after migration, whereas urban teen boys do not substitute for adult work as much as girls. These changes in strenuous activities, particularly for girls, likely explain the differential effect that migration has on boys’ and girls’ obesity outcomes in Mexico.  相似文献   
10.
This article addresses why agricultural productivity is still very low in peripheral parts of eastern Indonesia. The paper identifies rules and norms underpinning traditionalism. It further addresses how increased land-use efficiency can be supported while maintaining communal land ownership. Information collected from in-depth interviews was analysed based on new institutional economics (NIE) theory. I argue that the government, adat leaders, the Catholic Church, leading businesses, and internationally funded NGOs are organisations contributing to the status quo. Policy recommendations include awareness among international donors of what NGOs really do. Civil society organisations could contribute to a more efficient and democratic government and less feudalist traditional leadership. A government tax on fertile land could form the basis for a cadastre system, secure farmers’ permanent land-user rights, and also enhance land productivity, without reducing the values of a rich culture based on communal land.  相似文献   
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