The Calendar Impact and Trading Behavior
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A Few Common Misconceptions in Historical Astronomy by Barry D
A Few Common Misconceptions in Historical Astronomy By Barry D. Malpas – Special to the Williams-Grand Canyon News – 2014 September Did Galileo Invent the Telescope? Credit for the invention of the telescope is given to the Dutch lens maker Johann Lippershey (ca. 1570- 1619) in the year 1608, who tried to market them as military devices to the Dutch Government. Galileo, hearing about the invention through his correspondences with other scientists in Europe, built his first telescope in one evening, during the fall of 1609. Galileo too recognized the military significance of the telescope, but he also compre- hended its scientific importance, applying it to the Moon and planets, hence expanding humankind's understanding of the Universe. This use advanced astronomy as a modern science and provided its most important research instrument. Has Polaris Always Been the North Star? As the Earth spins on its axis like a giant top, it also slowly wobbles like one, completing one cycle in a period of about 26,000 years. This circular wobble is known as Precession, and is the movement of the direction in the sky to where the Earth’s axis points. At present, it points very close to the star Polaris. However, 5,000 years ago when Stonehenge in England and the Great Pyramid at Giza, Egypt, were being constructed, the Earth’s north polar axis pointed to Thuban, a star in the constellation Draco. About 12,000 years from now the axis will circle its way around towards the bright star Vega, in the constellation Lyra. (Note both Thuban and Vega on the sky chart.) Was the Earth Considered Flat When Columbus Discovered the New World? This misconception was generally true for the unschooled masses, but not so for anyone who had received an education. -
Testing the Significance of Calendar Effects
A Service of Leibniz-Informationszentrum econstor Wirtschaft Leibniz Information Centre Make Your Publications Visible. zbw for Economics Hansen, Peter Reinhard; Lunde, Asger; Nason, James M. Working Paper Testing the significance of calendar effects Working Paper, No. 2005-02 Provided in Cooperation with: Federal Reserve Bank of Atlanta Suggested Citation: Hansen, Peter Reinhard; Lunde, Asger; Nason, James M. (2005) : Testing the significance of calendar effects, Working Paper, No. 2005-02, Federal Reserve Bank of Atlanta, Atlanta, GA This Version is available at: http://hdl.handle.net/10419/100920 Standard-Nutzungsbedingungen: Terms of use: Die Dokumente auf EconStor dürfen zu eigenen wissenschaftlichen Documents in EconStor may be saved and copied for your Zwecken und zum Privatgebrauch gespeichert und kopiert werden. personal and scholarly purposes. Sie dürfen die Dokumente nicht für öffentliche oder kommerzielle You are not to copy documents for public or commercial Zwecke vervielfältigen, öffentlich ausstellen, öffentlich zugänglich purposes, to exhibit the documents publicly, to make them machen, vertreiben oder anderweitig nutzen. publicly available on the internet, or to distribute or otherwise use the documents in public. Sofern die Verfasser die Dokumente unter Open-Content-Lizenzen (insbesondere CC-Lizenzen) zur Verfügung gestellt haben sollten, If the documents have been made available under an Open gelten abweichend von diesen Nutzungsbedingungen die in der dort Content Licence (especially Creative Commons Licences), you genannten Lizenz gewährten Nutzungsrechte. may exercise further usage rights as specified in the indicated licence. www.econstor.eu ATLANTA Testing the Significance of Calendar Effects f o Peter Reinhard Hansen, Asger Lunde, and James M. Nason Working Paper 2005-2 January 2005 FEDERAL RESERVE BANK WORKING PAPER SERIES FEDERAL RESERVE BANK of ATLANTA WORKING PAPER SERIES Testing the Significance of Calendar Effects Peter Reinhard Hansen, Asger Lunde, and James M. -
The Mathematics of the Chinese, Indian, Islamic and Gregorian Calendars
Heavenly Mathematics: The Mathematics of the Chinese, Indian, Islamic and Gregorian Calendars Helmer Aslaksen Department of Mathematics National University of Singapore [email protected] www.math.nus.edu.sg/aslaksen/ www.chinesecalendar.net 1 Public Holidays There are 11 public holidays in Singapore. Three of them are secular. 1. New Year’s Day 2. Labour Day 3. National Day The remaining eight cultural, racial or reli- gious holidays consist of two Chinese, two Muslim, two Indian and two Christian. 2 Cultural, Racial or Religious Holidays 1. Chinese New Year and day after 2. Good Friday 3. Vesak Day 4. Deepavali 5. Christmas Day 6. Hari Raya Puasa 7. Hari Raya Haji Listed in order, except for the Muslim hol- idays, which can occur anytime during the year. Christmas Day falls on a fixed date, but all the others move. 3 A Quick Course in Astronomy The Earth revolves counterclockwise around the Sun in an elliptical orbit. The Earth ro- tates counterclockwise around an axis that is tilted 23.5 degrees. March equinox June December solstice solstice September equinox E E N S N S W W June equi Dec June equi Dec sol sol sol sol Beijing Singapore In the northern hemisphere, the day will be longest at the June solstice and shortest at the December solstice. At the two equinoxes day and night will be equally long. The equi- noxes and solstices are called the seasonal markers. 4 The Year The tropical year (or solar year) is the time from one March equinox to the next. The mean value is 365.2422 days. -
Ocean Data Standards
Manuals and Guides 54 Ocean Data Standards Volume 2 Recommendation to Adopt ISO 8601:2004 as the Standard for the Representation of Date and Time in Oceanographic Data Exchange UNESCO Manuals and Guides 54 Ocean Data Standards Volume 2 Recommendation to Adopt ISO 8601:2004 as the Standard for the Representation of Date and Time in Oceanographic Data Exchange UNESCO 2011 IOC Manuals and Guides, 54, Volume 2 Version 1 January 2011 For bibliographic purposes this document should be cited as follows: Paris. Intergovernmental Oceanographic Commission of UNESCO. 2011.Ocean Data Standards, Vol.2: Recommendation to adopt ISO 8601:2004 as the standard for the representation of dates and times in oceanographic data exchange.(IOC Manuals and Guides, 54, Vol. 2.) 17 pp. (English.)(IOC/2011/MG/54-2) © UNESCO 2011 Printed in France IOC Manuals and Guides No. 54 (2) Page (i) TABLE OF CONTENTS page 1. BACKGROUND ......................................................................................................................... 1 2. DATE AND TIME FOR DATA EXCHANGE ......................................................................... 1 3. INTERNATIONAL STANDARD ISO 8601:2004 .............................................................. 1 4. DATE AND TIME REPRESENTATION................................................................................ 2 4.1 Date ................................................................................................................................................. 2 4.2 Time ............................................................................................................................................... -
Islamic Calendar from Wikipedia, the Free Encyclopedia
Islamic calendar From Wikipedia, the free encyclopedia -at اﻟﺘﻘﻮﻳﻢ اﻟﻬﺠﺮي :The Islamic, Muslim, or Hijri calendar (Arabic taqwīm al-hijrī) is a lunar calendar consisting of 12 months in a year of 354 or 355 days. It is used (often alongside the Gregorian calendar) to date events in many Muslim countries. It is also used by Muslims to determine the proper days of Islamic holidays and rituals, such as the annual period of fasting and the proper time for the pilgrimage to Mecca. The Islamic calendar employs the Hijri era whose epoch was Islamic Calendar stamp issued at King retrospectively established as the Islamic New Year of AD 622. During Khaled airport (10 Rajab 1428 / 24 July that year, Muhammad and his followers migrated from Mecca to 2007) Yathrib (now Medina) and established the first Muslim community (ummah), an event commemorated as the Hijra. In the West, dates in this era are usually denoted AH (Latin: Anno Hegirae, "in the year of the Hijra") in parallel with the Christian (AD) and Jewish eras (AM). In Muslim countries, it is also sometimes denoted as H[1] from its Arabic form ( [In English, years prior to the Hijra are reckoned as BH ("Before the Hijra").[2 .(ﻫـ abbreviated , َﺳﻨﺔ ﻫِ ْﺠﺮﻳّﺔ The current Islamic year is 1438 AH. In the Gregorian calendar, 1438 AH runs from approximately 3 October 2016 to 21 September 2017.[3] Contents 1 Months 1.1 Length of months 2 Days of the week 3 History 3.1 Pre-Islamic calendar 3.2 Prohibiting Nasī’ 4 Year numbering 5 Astronomical considerations 6 Theological considerations 7 Astronomical -
Adaptive Estimation of Daily Demands with Complex Calendar Effects For
Transportation Research Part B 34 (2000) 451±469 www.elsevier.com/locate/trb Adaptive estimation of daily demands with complex calendar eects for freight transportation Gregory A. Godfrey *, Warren B. Powell Department of Financial Engineering and Operations Research, School of Engineering/Appl. Science, Princeton University, Princeton, NJ 08544, USA Received 4 September 1997; received in revised form 7 May 1999; accepted 18 May 1999 Abstract We address the problem of forecasting spatial activities on a daily basis that are subject to the types of multiple, complex calendar eects that arise in many applications. Our problem is motivated by applica- tions where we generally need to produce thousands, and frequently tens of thousands, of models, as arises in the prediction of daily origin±destination freight ¯ows. Exponential smoothing-based models are the simplest to implement, but standard methods can handle only simple seasonal patterns. We propose a class of exponential smoothing-based methods that handle multiple calendar eects. These methods are much easier to implement and apply than more sophisticated ARIMA-based methods. We show that our tech- niques actually outperform ARIMA-based methods in terms of forecast error, indicating that our sim- plicity does not involve any loss in accuracy. Ó 2000 Elsevier Science Ltd. All rights reserved. Keywords: Forecasting; Time series; Freight demand; Exponential smoothing 1. Introduction We address the problem of forecasting daily demands that arise in large freight transportation applications at a fairly high level of detail. Our most speci®c issue is the need for daily forecasts of freight demand, generally extended for one or two weeks into the future. -
Adjusting for a Calendar Effect in Employment Time Series
ADJUSTING FOR A CALENDAR EFFECT IN EMPLOYMENT TIME SERIES Stephanie Cano, Patricia Getz, Jurgen Kropf, Stuart Scott and George Stamas, Bureau of Labor Statistics George Stamas, BLS, 2 Massachusetts Ave. NE, Room 4985, Washington, DC 20212 Key Words: Regression, Seasonal Adjustment gain for the current month often exceeded the expectation, thus exaggerating the strength of job growth. In the second case, again for a month in 1. INTRODUCTION which seasonal growth typically occurs, the seasonal expectation was too high and the resultant employment The Current Employment Statistics (CES) program series risked presenting a weaker employment picture is a survey of nearly 400,000 business establishments than genuinely existed. A recent example of this latter nationwide, which provides monthly estimates of situation occurred with April 1995: There were 4 nonfarm payroll jobs and the hours and earnings of weeks between the March and April surveys in 1995, workers. The month-to-month movements in these while each of the three preceding years had 5-week series are closely followed by policy makers and intervals. When the April 1995 survey registered a forecasters as timely indicators of the overall strength very weak employment gain, concerns were raised as to and direction of the nation's economy. Over-the-month whether this calendar effect had significantly changes in CES series are nearly always analyzed on a dampened the published over-the-month change. seasonally adjusted basis, but historically a calendar- Recent availability of X-12-ARIMA seasonal related limitation in the CES seasonal adjustment adjustment software developed by the Bureau of the process complicated the interpretation of month-to- Census enabled the Bureau of Labor Statistics (BLS) to month movements in the series. -
How Long Is a Year.Pdf
How Long Is A Year? Dr. Bryan Mendez Space Sciences Laboratory UC Berkeley Keeping Time The basic unit of time is a Day. Different starting points: • Sunrise, • Noon, • Sunset, • Midnight tied to the Sun’s motion. Universal Time uses midnight as the starting point of a day. Length: sunrise to sunrise, sunset to sunset? Day Noon to noon – The seasonal motion of the Sun changes its rise and set times, so sunrise to sunrise would be a variable measure. Noon to noon is far more constant. Noon: time of the Sun’s transit of the meridian Stellarium View and measure a day Day Aday is caused by Earth’s motion: spinning on an axis and orbiting around the Sun. Earth’s spin is very regular (daily variations on the order of a few milliseconds, due to internal rearrangement of Earth’s mass and external gravitational forces primarily from the Moon and Sun). Synodic Day Noon to noon = synodic or solar day (point 1 to 3). This is not the time for one complete spin of Earth (1 to 2). Because Earth also orbits at the same time as it is spinning, it takes a little extra time for the Sun to come back to noon after one complete spin. Because the orbit is elliptical, when Earth is closest to the Sun it is moving faster, and it takes longer to bring the Sun back around to noon. When Earth is farther it moves slower and it takes less time to rotate the Sun back to noon. Mean Solar Day is an average of the amount time it takes to go from noon to noon throughout an orbit = 24 Hours Real solar day varies by up to 30 seconds depending on the time of year. -
Calendar Anomalies: an Empirical Study on the Day of the Week Effect in Indian Banking Sector
International Journal of Business and Management Invention ISSN (Online): 2319 – 8028, ISSN (Print): 2319 – 801X www.ijbmi.org || Volume 6 Issue 7 || July. 2017 || PP—49-59 Calendar Anomalies: an empirical study on the Day of the Week Effect in Indian Banking Sector Harman Arora1, Dr.Parminder Bajaj 2 1Student-CFA Institute 2Associate Professor, JIMS, Rohini (Sec-5) Abstract: Calendar Anomalies have long been part of market folklore. ‘Studies of the day-of-the-week, holiday and January effects first began to appear in the 1930. And although academics have only recently begun seriously to examine these return patterns, they have found them to withstand close scrutiny. Calendar regularities generally occur at cusps in time—the turn of the year, the month, the week, the day. They often have significant economic impact. For instance, the "Blue 12 Monday” effect was so strong during the Great Depression that the entire market crash took place over weekends, from Saturday's close to Monday's close. The stock market actually rose on average every other day of the week. Calendar anomalies are often related to other return effects. For instance, some calendar anomalies are more potent for small than for large capitalization stocks. While analysis of cross-sectional effects requires fundamental databases—a relatively recent innovation—the study of calendar anomalies requires only time-dated records of market indexes. Hence calendar anomalies can be tracked historically for much longer periods than effects requiring fundamental data. The availability of a century of data brings enormous statistical power for testing calendar effects, but it also increases the likelihood of data-mining. -
WORKING PAPER 168/2018 Calendar Anomaly and the Degree
MSE Working Papers Recent Issues WORKING PAPER 168/2018 * Working Paper 159/2017 Export Performance, Innovation, And Productivity In Indian Manufacturing Firms Santosh K. Sahu, Sunder Ramaswamy and Abishek Choutagunta * Working Paper 160/2017 An Alternative Argument of Green Solow Model in Developing Economy Context Santosh K. Sahu and Arjun Shatrunjay Calendar Anomaly and the Degree of * Working Paper 161/2017 Market Inefficiency of Bitcoin Technical Efficiency of Agricultural Production in India: Evidence from REDS Survey Santosh K. Sahu and Arjun Shatrunjay * Working Paper 162/2017 Does Weather Sensitivity of Rice Yield Vary Across Regions? Evidence from Eastern and Southern India Anubhab Pattanayak and K. S. Kavi Kumar * Working Paper 163/2017 Cost of Land Degradation in India S. Raja Sethu Durai P. Dayakar Sunil Paul * Working Paper 164/2017 Microfinance and Women Empowerment- Empirical Evidence from the Indian States Saravanan and Devi Prasad DASH * Working Paper 165/2017 Financial Inclusion, Information and Communication Technology Diffusion and Economic Growth: A Panel Data Analysis Amrita Chatterjee and Nitigya Anand * Working Paper 166/2017 Task Force on Improving Employment Data - A Critique T.N. Srinivasan * Working Paper 167/2017 Predictors of Age-Specific Childhood Mortality in India G. Naline, Brinda Viswanathan MADRAS SCHOOL OF ECONOMICS * Working papers are downloadable from MSE website http://www.mse.ac.in Gandhi Mandapam Road $ Restricted circulation Chennai 600 025 India April 2018 Calendar Anomaly and the Degree of Market Inefficiency of Bitcoin S. Raja Sethu Durai Associate Professor School of Economics, University of Hyderabad, Hyderabad-500046, India [email protected] and Sunil Paul Assistant Professor, Madras School of Economics [email protected] i WORKING PAPER 168/2018 MADRAS SCHOOL OF ECONOMICS Gandhi Mandapam Road Chennai 600 025 India April 2018 Phone: 2230 0304/2230 0307/2235 2157 Fax : 2235 4847/2235 2155 Email : [email protected] Price : Rs. -
Calendar Effects in the Portuguese Mutual Funds Market
Calendar Effects In The Portuguese Mutual Funds Market Márcio Daniel Pereira Barros [email protected] Dissertation Master in Finance Supervisor: Prof. Doutor Júlio Fernando Seara Sequeira da Mota Lobão September 2015 BIOGRAPHIC NOTE Márcio Daniel Pereira Barros, born on the 20th of December 1992, in Valença, Viana do Castelo. In 2010, he enrolled in a Bachelor in Economics in FEP – School of Economics and Management, from which he graduated in 2013. During the same year, he entered in the Master in Finance in the same institution, having concluded the curricular year with an average grade of 15. In the course of his academic years, Márcio was also member and part of the Executive Board of AIESEC in FEP. In 2015, Márcio joined IBM International Services Centre, in Slovakia, where he currently has the position of Financial Analyst. i ACKNOWLEDGEMENTS Firstly and most importantly, I want to thank Professor Julio Lobão, for his support since the beginning; this work would not be possible without him. I am deeply grateful for his patience, guidance, share of knowledge and constructive feedback. I also thank all my family for their total support and concern, especially from my parents. Last but not least, I would like to highlight all the motivation and help provided by my closest friends, who directly or indirectly have contributed to the accomplishment of this goal. ii ABSTRACT: There is a wide range of studies regarding the calendar effects, however very few of those studies are applied to the mutual funds’ performance. This study aims to search the existence of calendar effects (also known as calendar anomalies) in the Portuguese Mutual Funds Market. -
Quaker Calendar Guide
The Quaker calendar Research guide In the past Quakers often dated their documents in ways that are unfamiliar to us now. This guide will help you to understand what the dates used on historical Quaker documents mean in today's language. The English year before and after 31 December 1751 Up to and including 1751 the Julian calendar was used in England, Wales, Ireland and the British colonies overseas. In these places the year officially began on 25 March (Lady Day) and ended on the following 24 March. So 24 March 1750 was followed the next day by 25 March 1751. In Scotland the Gregorian calendar had been in use since 1600, with a year that began on 1 January. In 1751 the British Parliament passed the Calendar (New Style) Act 1750, also known as ‘Chesterfield’s Act’ after the 4th Earl of Chesterfield (24 Geo II c.23). It laid down that from 1752 the English year would begin on 1 January. Thus the year 1751 began on 25 March and ended on 31 December, followed immediately by 1 January 1752. There is a further difference (related to leap years) between the Julian and Gregorian calendars, which meant that by 1752 the Julian calendar was twelve days behind the Gregorian one. Chesterfield's Act had therefore laid down that, in 1752, 2 September should be followed by 14 September (for a fuller account, see Cheney, CR (ed) (1948) Handbook of Dates for Students of English History. London: Royal Historical Society [Ref. Shelves]). Quaker usage Quakers followed the national practice, with one exception.