国内豆粕后市的行情走势 市场看法出现分歧

截至5月10日，纵观全国各地油厂的豆粕价格，可以看出，目前部分地区豆粕价格与“五一”前基本持平，部分地区豆粕价格下降20～50元／吨不等。     

艺术市场专家论市读盘

年轻藏家群体抬升新锐艺术品价格《艺术与投资》:从上面的数据我们可以看出,尹朝阳、高瑀等新锐艺术家的作品近年频繁出现,且价格不断上升,就您的专业眼光来看,促使价格不断上涨的主客观因素都有哪些?     

节水型技术对农业水资源的替代

节水型技术对农业水资源的替代北京农业大学李素英一、我国农业水资源及稀缺程度我国农业水资源，虽然不能从价格指标上反映其是否稀缺，但是我们可以从与世界平均水平的对比及其在分布上的特点看出我国水资源，特别是农业水资源的稀缺程度。１．我国水资源的总量大，但人...     

“泡沫经济”引起的理论思索

８０年代后期到９０年初期，日本出现了前所未有的“泡沫经济”现象，严重地制约了经济的发展。从日本有关专家对“泡沫经济”的成因、影响及对策的分析中可以看出，“泡沫经济”从开始形成到破碎是有一个过程的。开始是资产类投资的预期利益上升，资产求大于供，价格大幅度上升，而其他消费品价格却相对稳定。于是引起投资倾斜，资金倾斜到最容易赚钱的房地产和股票等资产交易上来，金融部门也参加进来使经济发热，大规模地建造房屋，开办企业。资产价格猛涨和大规模的建造房屋都会导致资产可供量增加，出现供过于求和资产价格下跌。资产价…     

浅析近期蛋价趋势

由三大集团的中心城市价格来看，近期蛋价，广州3．25左右浮动，上海3．25左右浮动，而北京在2．95左右的价格浮动。三地价格始终没有太大变动，广州仅在前两天涨到了3．3以上，但马上又落了回来证明短时缺货后马上填补空缺，上海最为稳定证明货源供求基本平衡，北京市场逐步走快后近期稍有积压所以价格有点浮动但还是以稳为主。而各主产区价格也基本稳定，虽成小幅震荡趋势，但明显可以看出呈现出涨落两难的趋势。     

信息窗

中国粮食供求关系总趋势 最近三年来,我国粮食连年丰收,去年尽管遭受了各种灾害,粮食总产量预计仍达到49250万吨,是历史上第二个丰收年,市场粮食供应充裕,价格平稳。与此同时,粮食储备也达到了历史最高水平。 通过分析可以看出,世纪之交的中国粮食供求     

夏季肥供应充足

海关总署数据显示,2022年一季度,中国累计出口各种肥料415万吨,同比下降33.2％.其中,尿素累计出口30万吨,同比下降62.2％. "今年一季度,在国际市场价格大涨的情况下,国内化肥出口量大幅缩减,可以看出当前市场保供是主旋律."     

甲鱼市场价格走势分析

<正> 全国甲鱼养殖产量2002年在12万吨,产值达55亿元,成为渔业经济支柱产业之一。 甲鱼价格走势是广大养殖户十分关注的问题,本人根据去年全国50个水产市场甲鱼价格作一分析,供参考。2002年,1—6月,全国水产市场甲鱼平均价49.7元/kg,比上年同期(62.13元/kg),降低了20％。4月份价格最高52.2元/kg,2月份价格最低,平均价格为46.8元/kg。2001年2月份价格最高平均68.57元/kg,6月份最低。2002年上半年甲鱼每月价格与上半年价格的绝对偏差的平均值为1.26。从以上数字可以看出,2002年甲鱼价格与2001年甲鱼价相比明显趋于稳定。2002年最高平均价格与最低平均价的标准差为23.12元/kg,而2001年则为41.32元/kg。2001年3—6月份的价格跌势明显。     

鱼价平稳的思考

鱼价平稳的思考淮南市农牧渔业局张宏刚１９９４年，国内一些主要消费品价格上涨，其中食品平均上涨３１．８％，粮食５０．７％，肉禽及其制品４１．６％，食用植物油６４；ｌ％，鲜菜３８．２％，水产品２０．３％。可以看出，目前，在农副产品价格大幅度上升的同时，水...     

浅谈养蛇业的现状以及出路

正水律蛇曾经演绎的疯狂2010年的水律蛇蛋是40~50元一枚,2011年涨到70~80元一枚,2012年达到了颠峰价105~110元一枚,2013年价格开始出现松动,降到60~70元一枚,2014年是30~45元一枚,2015年是8~20元一枚,尾蛋最低是3元钱一枚。从这几年蛇蛋的价格变化可以看出前些年水蛇养殖业是何等的疯狂。在蛇蛋逐年上涨的情况下,母蛇的价格也水涨船高,最高卖到500元/斤,还不一定买得到。     

我国鸡蛋价格波动传导的影响因素分析——基于非对称的研究视角

[目的]文章采用鸡蛋价格的周度批发和零售数据,从成本、替代品两个维度探讨鸡蛋价格波动的影响因素和非对称传导特征。[方法]通过滚动回归的方式探讨非对称传导特征的动态变化,并进一步探讨了鸡蛋批零价格之间的相互影响和非对称传导特点。[结果]成本、替代品价格变动对与鸡蛋批零价格具有正向影响和非对称特征,但在静态的线性回归模型中并不明显。鸡蛋批发价格受成本价格变动的影响更大,而零售价格受替代品价格变动的影响更大。在动态的滚动回归模型下,成本、替代品价格对鸡蛋价格波动具有十分明显的时变非对称特征,但这种非对称传导特征并不一致。鸡蛋批发价格早期对零售价格具有正向的非对称传导,但近年来趋向于对称传导。鸡蛋零售价格对批发价格总体具有负向的非对称传导特征,零售价格下降对批发价格的影响更大。[结论]需要建立蛋鸡产业成本—价格监测预警系统,充分发挥产业技术平台、行业协会、学会等研究机构在生产决策中的指导作用。不断完善鸡蛋供应链建设,增强调控与监管政策的灵活性与创新性。     

Trade,value chains,and rent distribution with foreign exchange controls: Coffee exports in Ethiopia

Exchange rate policies can have important implications on incentives for export agriculture. However, their effects are often not well understood. We study the issue of foreign exchange controls and pricing in the value chain for Ethiopia's coffee—its most important export crop. Relying on unique pricing and cost data, we find that coffee exporters are willing to incur losses during exporting by offering high prices for coffee locally in order to access scarce foreign exchange. We further find that the consequent high wholesale prices for coffee are transmitted to producers, so that coffee farmers are unintended beneficiaries of this rent.     

国际大米价格波动对国内大米价格的传递效应研究

［目的］国际粮食价格波动会对国内粮食价格产生影响,其影响程度和途径一直是农产品价格领域的研究热点。［方法］基于2002年1月至2017年6月的月度数据,运用Johansen协整检验和向量误差修正模型检验了国际大米价格与国内大米价格的长期均衡与短期输入关系,在考虑国内大米价格形成机制的基础上分析了国际大米价格的影响程度,并进一步检验了大米与其他粮食品种价格间的整合关系。［结果］（1）国内大米价格与国际大米价格保持长期均衡关系,短期内国内大米价格对国际大米价格波动的弹性为00226。（2）国际大米价格对国内大米价格具有显著的影响,在控制其他变量不变的前提下,国际大米价格每上涨1%,国内大米价格会上升约01%。（3）Johansen协整检验表明大米会与其他粮食品种价格保持长期整合关系,国际大米价格上涨可能会通过间接渠道传递至国内大米市场。［结论］因此不仅需要关注国际大米价格对国内大米价格的影响,还需要关注其他粮食品种对大米价格的影响。     

容积率和出让方式对地价的影响——基于特征价格模型

研究目的:分析容积率和土地出让方式对城市地价的影响,以及2004年旨在减少土地协议出让方式的"71号令"是否提高了地价。研究方法:以北京市2002—2005年间1363宗住宅类土地出让的数据为基础,采用特征价格模型进行实证分析。研究结果:(1)容积率每提高1%,单位地价将提高0.86%;(2)"71号令"的颁布并没有明显地推高北京地价,只是减少了土地出让的总量。研究结论:出让方式从协议出让改为招标拍卖的实质是以市场机制代替计划体制,但市场机制本身并不会直接导致地价上涨。     

粮食、食品价格和CPI的VAR实证研究

综述了目前国内关于粮食价格、食品价格对CPI的影响机制的研究.选取2001年7月至2012年12月的月度数据,通过VAR进行了粮食冲击效应分析,采用Johansen检验进行了三者因果的验证,合理解释了食品价格和粮食价格、CPI三者之间的影响关系.结论：在研究的时间段中,粮食价格和食品价格的增长都会引起物价水平的增长;物价水平的上涨也会影响到粮食价格.但是,物价水平对食品价格、粮食价格对食品价格的变化却影响不明显.     

Farmers' Subjective Valuation of Subsistence Crops: The Case of Traditional Maize in Mexico

Shadow prices guide farmers' resource allocations, but for subsistence farmers who grow traditional crops they may bear little relationship with market prices. We theoretically derive shadow prices for a subsistence crop with nonmarket value, then estimate shadow prices of maize using data from a nationally representative survey of rural households in Mexico. Shadow prices are significantly higher than market prices for traditional but not improved maize varieties. They are particularly high in the indigenous areas of southern and southeastern Mexico, indicating large  de facto  incentives to maintain traditional varieties there.     

The Canadian Beef and Pork Sectors: New Found Relevance of Live Market Information

The structure of price transmission both vertically (between links in the market channel) and horizontally (between market areas) for beef and pork in Canada is examined. The analysis of vertical price transmission indicates that farmgate prices lead retail prices. The hypothesized relationship between retail and farmgate prices is that the farmgate demand curve is shifted by wholesaler anticipation of the retail price changes. Such a situation would place greater importance on the live markets since prices determined in these markets would eventually be reflected in the retail market. The results have further implications for the determination of price margins and related policy issues.     

A social-media-based approach to assessing the effectiveness of equitable housing policy in mitigating education accessibility induced social inequalities in Shanghai,China

Social inequalities induced by education accessibility are widespread and concern land use policy makers globally. Yet much of existing research heavily emphasizes on uncovering the spatial patterns of housing price in relation to education resources. This paper aims to renew our understanding of this classical topic by bringing the importance of temporal and institutional dynamics to the fore. Specifically, this research presents a detailed examination of the relationship between school quality and housing rental dynamics under the intervention of equitable housing policy, with special reference to Shanghai, the most developed megacity in China, also one of the first Chinese cities granting equal rights for renters to access schools within the catchment area. Based on time-series housing rental data collected from social media, the t-test discovers that school quality has a significant impact on housing rental prices after the introduction of this new housing policy. Moreover, housing rental prices within high-quality school districts are significantly higher than those within ordinary school districts. The hedonic model and variance partitioning further confirm that school quality is capitalized into housing rental prices, and its relative contribution varies with temporal periods. More specifically, how the relative contribution of school quality changes over time is consistent with the schedule of primary school enrollment and sensitive to policy intervention. The difference in difference model foregrounds that the equitable housing policy does result in rental prices hike in high-quality school districts, i.e., a 13.5 % rental premium of housings within high-quality school districts compared with those within ordinary ones. We conclude that the equitable housing policy fails to achieve the expected goal and propose alternative suggestions for mitigating social inequalities in education accessibility. This study demonstrates a novel methodological framework for evaluating the social consequence of equitable housing policy based on social media data. It unravels how housing rental changes with school district division and the capitalization effect of school quality in housing rental prices.     

How Firms Construct Price Changes: Evidence from Restaurant Responses to Increased Minimum Wages

We use price data underlying the Consumer Price Index to assess how restaurants, whose prices are generally quite sticky, respond to minimum wage increases. Aggregate prices rise, quickly, by amounts reflecting the increase in costs, and they rise more among fast food outlets and in low-wage locations. But restaurants do not construct price increases by raising all their prices by amounts reflecting the increase in wages. Instead, they raise only some prices, but by larger amounts. Prices at cluster points are less likely to be changed, and prices that were recently increased (decreased) are less (more) likely to be raised.     

Testing vertical price transmission for Vietnam's Robusta coffee

Vietnam has undergone market reforms over the last three decades; and as a consequence, the coffee sector has become increasingly market‐driven. The success of the government's liberalisation policies in terms of market efficiency is investigated by examining the transmission of both positive and negative price changes for Robusta coffee between export and farmgate prices. We used a threshold vector error correction model and high‐frequency daily data. The primary result here is that of a symmetric price transmission between export and farm‐level prices. This result holds when tested with weekly price data, derived from the daily data. Farmgate prices respond faster to decreases than increases in export prices when the long‐run deviation exceeds a certain threshold. These price changes are transmitted within several days. This research also confirms the importance of transaction costs, and other price frictions mostly ignored in prior analyses for coffee.