The α-stable processes and their relationship with the exponent of self-similarity: Exchange rates of USA Dollar,Canadian Dollar,Euro and Yen

This research work analyzes the yields of the exchange rate parities of the American dollar, Canadian dollar, Euro, and Yen; estimates the basic statistics and the α-stables; carries out the Kolmogorov–Smirnov, Anderson–Darling, and Lilliefors goodness of fit tests; estimates the self-similar exponents and carries out the t and F tests, ruling out that the series of parities are multifractal. It also estimates the confidence intervals of the exchange rate parities and concludes that the estimated α-stable distributions are more efficient than the Gaussian distribution to quantify the risks of the market, and that the series are self-similar. Through the ? index, we can infer the risk of the events, indicating that the parities are anti-persistent and thus have short-term memory, mean reversion, and a negative correlation with the high risk in the short and medium term. The estimation and validation of the α-stable distributions and the self-similar exponent are important in the evaluation and creation of innovative investment instruments through financial engineering, risk administration, and the evaluation of derived products.     

Oil risk contracts,business conduct and performance patterns: Data panel analysis

Using the economic and financial performance data of international companies for the exploration, and exploration–extraction (E&E) of oil, as well as the patterns of institutional situation and orientation with the government market and national oil companies or NOCs that receive project offers, we analyze the institutional development and behavior patterns by type of E&E contract, following the strategic actor approach, or the so-called agency theory. Additionally, in light of Mexico's energy reform being implemented between 2015 and 2019, we analyzed the types of license contracts compared to those for production and shared profit. Subsequently, it was determined-through panel data methods in the analysis of 17 companies between 2005 and 2015-that global companies present bigger yields and commitments compared to specialized companies, confirmed by their net income and returns on equity or ROE.     

Complex stylized facts of the Mexican economy: a hirschmanian perspective (to attack the “fear of growing”, more and better)

We elaborate some complex stylized facts related to the Mexican economy. The analyzed period runs from 1960 to 2013 with selected subperiods. Our main findings are: 1) there are involuntary idle capacities in the manufacturing industries; 2) the growth of the Mexican economy is not balanced but unbalanced; 3) there is an inflation-free environment. This fact is consistent with the previous ones; 4) there is a mixed of efficient and inefficient sequences of investment; 5) the stimulus of manufacturing exports on macroeconomic performance has been offset by its imports; 6) the deficits in manufacturing balance and in the current account have been financed without difficulty. Of course, this financing capacity constitutes a second best condition; 7) according to a backward linkages analysis, the towing capacity of manufacturing sector over the Mexican economy would be a larger one if the manufacturing imports penetration had not been so intense since the trade liberalization; and 8) the size of the positive effect of the manufacturing sector on the economy and on the non-manufacturing sectors diminished since the early eighties. Our complex stylized facts highlight the need for an upgrading of the current economic policies.     

Cournot games with biconcave demand

Biconcavity is a simple condition on inverse demand that corresponds to the ordinary concept of concavity after simultaneous parameterized transformations of price and quantity. The notion is employed here in the framework of the homogeneous-good Cournot model with potentially heterogeneous firms. The analysis leads to unified conditions, respectively, for the existence of a pure-strategy equilibrium via nonincreasing best-response selections, for existence via quasiconcavity, and for the uniqueness of the equilibrium. The usefulness of the generalizations is illustrated in cases where inverse demand is either “nearly linear” or isoelastic. It is also shown that commonly made assumptions regarding large outputs are often redundant.     

The distinctive agenda of service failure recovery in e-tailing: Criticality of logistical / non-logistical service failure typologies and e-tailing ethics

What is so different about executing service failure recovery in an online environment as in e-tailing?Answering this, the present research points out to the need of considering e-tailing's natural propensity to foster multiple avenues of service failures which are either logistical or non-logistical in nature. Furthermore, given the distant location of the product, e-tailer, and the buyer, e-tailing is posed with risks of ethical transgressions. Therefore, by contextualizing on an Indian e-tailing scenario, we explore how service failure recovery in this challenging setting could be shaped. Justice building failure mitigation strategies such as response speed and compensation emerge to improve recovery efforts, however, apology seems to not work well in establishing justice to drive service failure recovery. Interestingly, an e-tailer's watchfulness toward the strengthening of its online ethics synergistically redeems recovery satisfaction, customer forgiveness, and positive word-of-mouth for the grieving consumer. This synergy can further mitigate the adverse impacts of service failure severity on recovery outcomes. Yet, a consumer having faced a severe service failure instance can have reservations in spreading positive word-of-mouth despite forgiving. Lastly, when considering logistical vs. non-logistical service failure typologies, the synergistic influence of e-tailing ethics and justice over recovery satisfaction becomes very strong in the case of non-logistical service failures.     

我国生态农业发展模式初探

生态农业是我国农业未来发展的根本方向,而我国农业地域的自然经济条件的差异决定了在不同地域要培育多样的生态农业发展模式。现阶段,我国要着力推进和培育城镇近郊多功能都市生态农业发展模式,农产品主产区规模化生态农业发展模式,生产条件较差农业区综合效益优化生态农业发展模式三大生态农业模式。     

财政支农的市场一体化效应及其政策

以增加农民收入从而支撑具有产业、区域特征的市场一体化为视角,对财政政策不同的支农方式和支农工具所产生的不同的农业市场一体化效应进行了分析,认为直接收入补贴明显好于价格支持;间接支农优于直接支农;而且不同的支农项目对市场一体化的促进作用差异显著。为此,提出了逐步减少价格支持,增加直接收入补贴,增加财政间接支农力度,引导农业生产要素多渠道利用,促进农业系统内外部合作,重视三农无形资产,建立适当监督机制等政策建议。     

黑龙江省农民工返乡创业政策支持研究

现阶段,黑龙江省已经面临返乡农民工转移就业的严峻形势。在这些返乡的农民工群体中不乏一些具备一定技术和管理经验的人才,想凭借自己的一技之长开创一番事业。但在创业过程中遇到了许多自身难以克服的困难。为促进农民工返乡创业,黑龙江省应提供创业教育培训、创业融资支持和创业环境优化等政策支持。     

水平井技术在江苏复杂小断块油田的应用

江苏油田地处经济发达的长江金三角地区,该地区地面水网密布、村庄密集,钻井征地费用高、环保要求高;地下断层发育、油藏规模小,属我国东部复杂小断块油田,开发难度大。近年来,由于水平井技术的广泛应用,推动了江苏油田的发展,文章阐述了江苏复杂小断块油田的基本地质特点,系统介绍了水平井技术在江苏油田试验、研究和应用状况,分析了典型油藏应用效果,提出了对水平井应用的认识和建议。