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81.
The necessity of expressing the relative price of a commodityin terms of another commodity makes it impossible to distinguishthat part of any change that can be ascribed to the characteristicsof the commodity itself from the part of that change that isto be ascribed to the characteristics of the commodity of reference,i.e., the numéraire. Ricardo (1817) was the first topoint out this problem and the need to find an invariablemeasure of value, but he was not able to solve the problem.In 1960, Sraffa suggested using a bundle of commodities, thathe called Standard commodity, to accomplish thisfunction, claiming that it was a standard of value invariantwith respect to changes in the distribution of income. But inSraffa's book there is no explicit proof of this claim. Thisgave rise to many misunderstandings about the Standard commodityand its role as invariable measure of value. This paper proposesa proper definition of an invariable measure of value,and then proves that the Sraffa Standard commoditydoes fulfil the requirements of this definition. 相似文献
82.
Decisions in Economics and Finance - We describe in this paper a variance reduction method based on control variates. The technique uses the fact that, if all stochastic assets but one are replaced... 相似文献
83.
Enrico Pennings 《Journal of Economics》2001,74(2):157-171
This article considers price formation and quantity setting of a capacity-constrained risk-neutral firm facing uncertain demand. It is shown that the optimal price of a price-setting risk-neutral monopolist decreases with demand uncertainty. With a strictly convex demand function expected profits increase with uncertainty for a quantity-setting monopolist whereas expected profits decrease for a price-setting monopolist. Furthermore, similar results on the effect of uncertainty are derived for a differentiated goods industry. 相似文献
84.
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86.
This paper addresses the ability of central banks to affect the structure of interest rates. We assess the causal relationship between the short‐term Effective Federal Funds Rate (FF) and long‐term interest rates associated with both public and private bonds and specifically, the 10‐Year Treasury Bond (GB10Y) and the Moody's Aaa Corporate Bond (AAA). To do this, we apply Structural Vector Autoregressive models to U.S. monthly data for the 1954–2018 period. Based on results derived from impulse response functions and forecast error variance decomposition, we find: a bidirectional relationship when GB10Y is considered as the long‐term rate and a unidirectional relationship that moves from short‐ to long‐term interest rates when AAA is considered. These conclusions show that monetary policy is able to permanently affect long‐term interest rates and the central bank has a certain degree of freedom in setting the levels of the short‐term policy rate. 相似文献
87.
Martin A. Carree Ingrid Verheul Enrico Santarelli 《Journal of Evolutionary Economics》2011,21(3):499-517
There is considerable variation in the firm exit rate across the 103 provinces in Italy. This paper investigates a range of
determinants of the exit rate for twelve different sectors in the Italian provinces for a period of eleven years. The analysis
shows that the exit rate is positively affected by entry in the previous year (displacement) in the same sector. Previous
exit has a different effect for the manufacturing industry as compared to the business services. More specifically, exit persists
in manufacturing while in the business services it is rather exit in related sectors in the same province that leads to increased
exit, probably due to the loss of clients or suppliers. The presence of industrial districts diminishes exit, especially in
two manufacturing sectors (Food and Clothing), Commerce and Transport. Provinces with strong trademark activity appear to
have lower exit rates. 相似文献
88.
This paper introduces underground activities and tax evasion into a one-sector dynamic general equilibrium model with aggregate external effects. The model presents a novel mechanism driving the self-fulfilling prophecies, which is characterized by well behaved (downward sloping) labor demand schedules. This mechanism differs from the customary one, and it is complementary to it. Compared to traditional labor market income, the income derived from underground labor activity is subject to a lower expected tax rate when considering both the probability of detection and the evasion penalty. During a belief-driven expansion, the household allocates more time to both traditional and underground labor supply. In equilibrium, this action serves to lower the effective labor tax rate faced by the household, thus providing stimulus to aggregate labor supply so as to make the initial expansion self-fulfilling. The mechanism here is akin to a “regressive tax”; the household's effective tax rate depends negatively on the level of total labor income. We argue that an underground sector, and the associated tax evasion, offer a good economic rationale for a regressive tax rate. 相似文献
89.
Enrico Baraldi Gian Luca Gregori Andrea PernaAuthor vitae 《Industrial Marketing Management》2011,40(6):838-852
The purpose of this paper is to investigate the connection between network evolution and technology embedding. To this end, we performed an exploratory case study of the network surrounding an eco-sustainable technology, Leaf House, Italy's first zero-carbon emission house. We apply theories on technological development within industrial networks, with a specific focus on their resource layer and on the three settings involved in embedding an innovation: “developing”, “producing”, and “using”. Our results contribute to these theories by developing four propositions on the connections between network evolution and embedding: first, technology embedding entails both downstream network expansion and upstream restrictions. Secondly, conflicts among actors increase as technology embedding approaches the producing and using settings. Third and fourth, the more the shapes a technology can assume, and the more each of these shapes involves actors acting in different settings, the easier it is to embed it. The paper concludes with managerial implications and suggestions for further research. 相似文献
90.
This article investigates whether the market reaction to second-hand information is due to price pressure or information dissemination. We use the perspective of attention grabbing to analyse the market reaction to the dissemination of analysts’ recommendations published in print media. This perspective is able to explain the asymmetric market reaction to ‘buy’ and ‘sell’ advice, which is difficult to rationalize within the price pressure hypothesis. We base our empirical analysis on the content of a weekly column in the most important Italian financial newspaper, which publishes past information and analysts’ recommendations on listed companies. Our findings show asymmetric price and volume reactions on the publication day. Contrary to previous evidence, we document a positive relationship between the number of analysts quoted in the column and the price (volume) increase associated with positive recommendations. Because the weekly columns seem to simply attract investors’ attention, with no additional new information, observing a reaction positively related to the column’s salience (proxied by the number of quoted analysts) is natural. In addition, we find that the market reaction is higher when the order size is lower, i.e., when individual investors’ trades constitute a higher fraction of the total trading activity in the market. 相似文献