全文获取类型
收费全文 | 185篇 |
免费 | 8篇 |
专业分类
财政金融 | 32篇 |
工业经济 | 20篇 |
计划管理 | 44篇 |
经济学 | 49篇 |
运输经济 | 1篇 |
贸易经济 | 40篇 |
农业经济 | 1篇 |
经济概况 | 6篇 |
出版年
2023年 | 1篇 |
2021年 | 3篇 |
2020年 | 5篇 |
2019年 | 11篇 |
2018年 | 5篇 |
2017年 | 16篇 |
2016年 | 9篇 |
2015年 | 5篇 |
2014年 | 9篇 |
2013年 | 28篇 |
2012年 | 8篇 |
2011年 | 6篇 |
2010年 | 5篇 |
2009年 | 6篇 |
2008年 | 6篇 |
2007年 | 8篇 |
2006年 | 5篇 |
2005年 | 5篇 |
2004年 | 10篇 |
2003年 | 6篇 |
2002年 | 5篇 |
2001年 | 3篇 |
2000年 | 1篇 |
1999年 | 4篇 |
1998年 | 2篇 |
1997年 | 2篇 |
1996年 | 3篇 |
1995年 | 2篇 |
1994年 | 4篇 |
1993年 | 2篇 |
1992年 | 1篇 |
1991年 | 1篇 |
1990年 | 1篇 |
1988年 | 1篇 |
1987年 | 1篇 |
1985年 | 1篇 |
1980年 | 2篇 |
排序方式: 共有193条查询结果,搜索用时 15 毫秒
31.
32.
33.
This work addresses the problem of optimal pricing and hedging of a European option on an illiquid asset Z using two proxies: a liquid asset S and a liquid European option on another liquid asset Y. We assume that the S-hedge is dynamic while the Y-hedge is static. Using the indifference pricing approach, we derive a Hamilton–Jacobi–Bellman equation for the value function. We solve this equation analytically (in quadrature) using an asymptotic expansion around the limit of perfect correlation between assets Y and Z. While in this paper we apply our framework to an incomplete market version of Merton’s credit-equity model, the same approach can be used for other asset classes (equity, commodity, FX, etc.), e.g. for pricing and hedging options with illiquid strikes or illiquid exotic options. 相似文献
34.
This paper shows that in a two-country two-overlapping-generations model with migration, capital mobility and an immobile production factor (land), a locally welfare-improving pension reform at the cost of the neighboring country is possible if land plays a minor role in production. Furthermore, differences in the size of the PAYG pension schemes between the countries distort the international allocation of labour and capital. As a result, a Pareto-improving pension reform is possible if countries employ PAYG pension schemes of different size, provided that a federal government exists that redistributes benefits and losses of the reform both intergenerationally and internationally. 相似文献
35.
Igor Gurkov Olga Zelenova Zakir Saidov 《International Journal of Human Resource Management》2013,24(7):1289-1302
This article describes the challenges facing established practices and patterns of human resource management (HRM) during the economic recession. It is based on the results of the CRANET survey, administered in Russia in the third quarter of 2008, on the 2008 CRANET data available for Bulgaria and on survey of companies' executives, implemented in the first half of 2010. We found that Russian HRM practices that are based on low formalization of performance assessment, great versatility of payment arrangements, and high flexibility of working and contractual arrangements enabled companies to adapt to the recession conditions without massive layoffs. 相似文献
36.
Economic reform in Russia has been described as ‘shock therapy’ because rapid industrial privatization, price liberalization and democratic reforms of the political system were introduced simultaneously. However, shock therapy led to insider control of most manufacturing firms, with important consequences for foreign investment. In contrast, China’s ‘gradualist’ reforms, without privatization or significant democratization, facilitated foreign joint ventures as the dominant means of reforming State-owned enterprises incrementally. This paper proposes an explanation for these contrasting reform paths in Russia and China and then traces their consequences for inward foreign domestic investment (FDI), exporting and for corporate governance in the short and long term. The impact of national level policies on enterprises is demonstrated in a matched pair of cases in Russia and China. Conclusions are drawn for policy, for practice and for future research. 相似文献
37.
This article analyzes the design of innovation contests when the quality of an innovation depends on the research approach, but the best approach is unknown. Inducing a variety of research approaches generates an option value. We show that suitable contests can induce such variety. The buyer‐optimal contest is a bonus tournament, where suppliers can choose only between a low bid and a high bid. This contest implements the socially optimal variety for a suitable parameter range. Finally, we compare the optimal contest to scoring auctions and fixed‐prize tournaments. 相似文献
38.
Igor Halperin 《Quantitative Finance》2019,19(9):1543-1553
The QLBS model is a discrete-time option hedging and pricing model that is based on Dynamic Programming (DP) and Reinforcement Learning (RL). It combines the famous Q-Learning method for RL with the Black–Scholes (–Merton) (BSM) model's idea of reducing the problem of option pricing and hedging to the problem of optimal rebalancing of a dynamic replicating portfolio for the option, which is made of a stock and cash. Here we expand on several NuQLear (Numerical Q-Learning) topics with the QLBS model. First, we investigate the performance of Fitted Q Iteration for an RL (data-driven) solution to the model, and benchmark it versus a DP (model-based) solution, as well as versus the BSM model. Second, we develop an Inverse Reinforcement Learning (IRL) setting for the model, where we only observe prices and actions (re-hedges) taken by a trader, but not rewards. Third, we outline how the QLBS model can be used for pricing portfolios of options, rather than a single option in isolation, thus providing its own, data-driven and model-independent solution to the (in)famous volatility smile problem of the Black–Scholes model. 相似文献
39.
40.