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排序方式: 共有435条查询结果,搜索用时 15 毫秒
1.
Patrice Baubeau Eric Monnet Angelo Riva Stefano Ungaro 《The Economic history review》2021,74(1):223-250
Despite France's importance in the interwar world economy, the scale of the French banking crises of 1930–1 and their consequences have never been fully assessed quantitatively. The lack of banking regulation severely limited the availability of balance sheet data. Using a new dataset of individual balance sheets from more than 300 banks, this article shows that the crises were much more severe than previously thought, although they did not affect the main commercial banks. By reconstructing financial flows, this study shows that the fall in bank credit was mostly driven by a flight‐to‐safety by deposits, from banks to savings institutions and the central bank. The decrease in bank deposits due to bank runs was offset by an increase in deposits with savings institutions, with the central bank, and in cash hoarding, whereas the decrease in bank credit was not offset by an increase in loans from non‐bank financial institutions. In line with the gold standard mentality, cash deposited with savings institutions and the central bank was used to decrease marketable public debt and increase gold reserves, rather than pursuing countercyclical policies. Despite massive capital inflows and rising aggregate money supply, France suffered from a severe, persistent credit crunch. 相似文献
2.
In this paper we test two hypotheses concerning the presence of innovation in venture capital investments and the growth of innovative venture backed firms. To examine these hypotheses we considered sample of 37 Italian venture backed firms that went public on the Italian Stock Exchange between 1995 and 2004 and by a statistical matching procedure we picked 37 twin firms among the non‐venture backed IPOs for the same period. Our evidence shows that innovation is an important factor during the selection phase but once the investment is made, the company does not promote continued innovation and concentrates all efforts to improve other economic and managerial aspects. 相似文献
3.
Modeling society with statistical mechanics: an application to cultural contact and immigration 总被引:1,自引:0,他引:1
We introduce a general modeling framework to predict the outcomes, at the population level, of individual psychology and behavior.
The framework prescribes that researchers build a cost function that embodies knowledge of what trait values (opinions, behaviors,
etc.) are favored by individual interactions under given social conditions. Predictions at the population level are then drawn
using methods from statistical mechanics, a branch of theoretical physics born to link the microscopic and macroscopic behavior
of physical systems. We demonstrate our approach building a model of cultural contact between two cultures (e.g., immigration),
showing that it is possible to make predictions about how contact changes the two cultures. 相似文献
4.
Abstract
It is market practice to quote interest rate derivatives traded “over the counter” in terms of their implied volatility. For
this reason, the term structure of at-the-money cap volatilities as well as the volatility surface of at-the-money swaptions
are directly observed. This paper analyzes the case of caps. Any analysis of these markets would most likely report two main
facts. The first is that the level of the volatility is inversely related to the level of the interest rates. The second is
that the term structure is either a decreasing or a humped function of maturity. For a reference, see Rebonato (2003) and
Brigo and Mercurio (2001). Rebonato (2003) suggests that the structure of implied volatility is humped in periods of normal
market conditions and decreasing when markets are “excited”. Interpreting and explaining such phenomena is indeed an interesting
and important issue.
Mathematics Subject Classification (2000): 91B70
Journal of Economic Literature Classification: E43, C13 相似文献
5.
Stefano Casini Benvenuti Dino Martellato Cristina Raffaelli 《Economic Systems Research》1995,7(2):101-116
Since the regional scale turns out to be the scale at which fiscal devolution is likely to be accomplished in Italy, and that at which trade and growth interdependencies as well as regional convergence can be most conveniently investigated, a new 20-region input–output model for Italy seems to be a useful tool of analysis. Although various regional and interregional models have been constructed since the 1950s, none has been implemented for the whole system of 20 Italian administrative regions considered in their tight mutual dependence; also, the pool approach has not been greatly favoured, even in situations where direct information on regional trade is lacking. The main purpose of this paper is to report on the structure of the model, the rather complex procedure used in the model construction and the adopted solution technique. Some space is devoted to the problems encountered in handling regional trade endogenously in an input–output setting and to a comparison between the pool approach, used in the Italian model, and other current techniques. The paper also reports on some preliminary results regarding the regional impact of fiscal policy. 相似文献
6.
Stefano Mengoli 《International Review of Financial Analysis》2004,13(3):301-331
This paper investigates the source of momentum profits, while inferring the validity of the assumptions underlying rational and behavioural theories. Using a unique sample of securities listed in the Italian Stock Exchange from 1950 to 1995, we observe that buying better performing stocks in the previous 3-12 months and selling worse performing stocks over the same period yields significant profits in the short term (less than 1 year). Results also hold when conditioned upon different risk specifications. On the other hand, the continuation effect seems to significantly revert over a longer period. More importantly, in contrast with Conrad and Kaul [Rev. Financ. Stud. 11 (1998) 489], bootstrap and Monte Carlo simulations show that momentum profits are more likely to be generated by stock returns time series properties rather than by their cross-sectional differences. While the overall findings cannot reject the market efficiency hypothesis, we argue that behavioural theory may be a possible “story” to interpret the continuation effect. 相似文献
7.
8.
Manlio Del Giudice Veronica Scuotto Armando Papa Shlomo Y. Tarba Stefano Bresciani Merrill Warkentin 《Journal of Product Innovation Management》2021,38(1):68-89
With the changing way people live, communicate, and work, enterprises are striving to shift their existing business model into a “self‐tuning” one. Enterprises are becoming more agile, adaptive, and ambidextrous in order to boost innovation in the current digital transformation era. Nowadays, “digital innovation” is closely associated with Industry 4.0 enablers and smart enterprises. Prior research has shown that while multinational enterprises—across many sectors—have already embraced the aforementioned advancements, their adoption by small and‐medium‐sized enterprises (SMEs) has so far taken place mainly in the manufacturing sector. Thus, based on a sample of 280 self‐tuned smart manufacturing SMEs and having utilized the structural equation modeling (SEM), this study was aimed to investigate how digital innovation is influenced by the three pillars of self‐tuning models—agility, adaptation, and ambidexterity. Our paper has focussed on the digital systems in which SMEs, spurred by networking and open innovation solutions, operate and innovate in response to external triggers, displaying a balance between exploration and exploitation, and a strong agile capacity. 相似文献
9.
10.
Nikolaos
Petrakis Stefano Peluso Dimitris Fouskakis Guido Consonni 《Statistica Neerlandica》2020,74(3):420-438
Graphical models are used for expressing conditional independence relationships among variables by the means of graphs, whose structure is typically unknown and must be inferred by the data at hand. We propose a theoretically sound Objective Bayes procedure for graphical model selection. Our method is based on the Expected-Posterior Prior and on the Power-Expected-Posterior Prior. We use as input of the proposed methodology a default improper prior and suggest computationally efficient approximations of Bayes factors and posterior odds. In a variety of simulated scenarios with varying number of nodes and sample sizes, we show that our method is highly competitive with, or better than, current benchmarks. We also discuss an application to protein-signaling data, which wieldy confirms existing results in the scientific literature. 相似文献