对“区票”目录修订版再修订的建议(一)

《中国解放区邮票目录》(修订版)(以下简称《目录》)于1998年出版以来,已历五年,在这五年中经国内外集邮家悉心不倦的挖掘,又有不少区票珍品被发现和新的研究成果。为了更好地满足集邮者,特别是区票集邮者的需要,进一步提高《目录》的品位,有必要把这些新发现、新成果在《目录》中得到反映,对其加以再度修订。笔者根据这几年从接触到的集邮报刊中收集到的有关信息,加以辑录,作为建议,供读者参考。在辑录过程中加入了些个人的认识。此外,笔者在阅读和使用《目录》时,曾发现一些属于疏漏或舛误的地方,顺便一并列出来。为了便于对照,一律按照原书页码和邮票编号的先后次序。

Suitable Date of Seeding, Planting Density and Water Use Efficiency for Propagation of Stock Seed Potato in Mountainous Region of Southwest Sichuan

[Objective] The experiment was conducted to study suitable date of seed- ing and density of spring potato at the stock breeding base in Ebian County at an elevation of 1 200 to 1 500 m. [Methods] Virus-free Potato ＂Chuanyu 13＂ was used as material to study the effects of date of seeding and density on growing period, germination rate, yield and water use efficiency of spring potato in the field. [Result] With the postponement of date of seeding, the days from sowing to germination shortened, while the germination rate, the number of tubers per plant, the number of middle and small tubers in a group, yield and water use efficiency all increased. Planting density had no effects on the days from sowing to germination and the ger- mination rate, while the number of tubers per ptant, the number of middle and small tubers in a group, yield and water use efficiency increased significantly along with the increasing planting density. [Conclusion] At an elevation of 1 200 m to 1 250 m in Ebian County, the suitable date of seeding for potato was from February 9 to March 1, and the suitable planting density was 12×10^4 plants per hm^2, however, in the optimum planting density has not been found so that it needs further research,

The Impact of Water Pollution Announcement on Stock Returns in Taiwan Textile Industry

The soccer teams of the World Cup wear the jerseys manufactured by Taiwan Residents textile companies which are the contractors of such brand corporations as Nike and Adidas. Because Taiwan Residents textile companies suffer water pollution events, this study verifies the market reactions to the two announcements of water pollution events from 2014 to 2015. The two events are as follows： first, Greenpeace International enabled 38 scientists to announce the ban on fluoride in Madrid; second, Greenpeace International has detected fluoride residues from the water in remote mountainous areas of Europe and concluded that Taiwan Residents jerseys composed of fluoride pollute the rivers or snows. The findings of the research indicate that the announcement of the ban on fluoride induces negative abnormal returns because fluoride is the main materials for Taiwan Residents jerseys. Most importantly, the announcement of the water pollution in Europe from Taiwan Residents manufactured jerseys induces negative abnormal returns. Both of the two events enable the stock investors scared about the decrease of future profit and market share for Taiwan Residents textile corporations. Consequently, investors sell the stocks of these corporations, inducing the negative abnormal returns during the announcement of water pollution of Taiwan Residents jerseys. Water polluted issues are critical of firm values.

Stock Market Reaction to ECFA Announcement in Taiwan Chemicals Listed Stock

Taiwan and China's Mainland signed the Economic Cooperation Framework Agreement （ECFA） on 29th June, 2010. The ECFA is a landmark bilateral trade agreement that can make Taiwan a new gateway to China's Mainland. However, the Taiwan Residents petrochemical industry would be very disappointed with the early harvest list as it excluded some critical export items. The purpose of this paper is to amend the understanding of the possible impact on petrochemical market after ECFA is enacted. The authors examine the cumulative daily response of stock prices to five announcements about the ECFA and evaluate the existence of the abnormal return. The authors use daily data from January 2010 to February 2011 to employ an event study approach. The empirical results suggest that the three ECFA announcement dates, as well as the signing date, show significantly negative abnormal return due to the prior positive cumulative response of Taiwan chemicals listed stock prices. This paper can provide the petrochemical industry manufacturer, owners, and investors with further insights into how chemicals stock returns react to a big event like ECFA.

Call Warrants Impact on Underlying Stocks： The Taiwan Experience

On the basis of the price, volume and volatility of underlying stocks, this article empirically investigates the impact of 273 Taiwan call warrants on underlying stocks. Discussions by the market risk, depth, tightness and liquidity, changes on underlying stocks due to warrants issuance, are investigated. In this study, the CAPM is applied for evaluating the market risk, the Kyle model for the market depth, the averaged best five bid-ask spread for the market tightness and the averaged turnover rate for the market liquidity. The empirical results indicate that the most significant influence is the market liquidity, the market tightness next; the market risk and market depth are non-significant.

The Development of a Seed Stock Industry Using Indigenous Livestock from Rural Keepers for Sustainable Production

The majority of livestock in the rural areas of Africa are indigenous types that are not well defined as breeds as perceived by the developed world. The animals in this important sector have remained largely uncharacterised and face the risk of genetic dilution due to indiscriminate crossbreeding, breed replacement and neglect. This article uses two examples to describe a system that has been implemented in South Africa that allows indigenous livestock from rural keepers to enter the seed stock industry as recognized breeds. The first example is the indigenous Nguni breed of cattle that has been successfully developed into a seed stock breed, with a society celebrating its 25th anniversary in November 2011. The second example involves the challenges of developing a seed stock industry for some of the unimproved indigenous goat breeds of South Africa. Climate change is expected to have a more extreme effect on southern hemisphere continents than on other continents. Such negative effects will include high ambient temperatures, nutritional stress and altered patterns of animal diseases. With the likelihood of global warming, these adapted genotypes can play a very important role in sustainable livestock production.