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A.M. Costa Rica's Fourth News page
San José, Costa Rica, Friday, May 22, 2015, Vol. 15, No. 100
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Fake tweet that shook up stock market considered by media professor
By the University at Buffalo news service

A false tweet from a hacked account owned by the Associated Press  in 2013 sent financial markets into a tailspin. The Dow Jones Industrial Average dropped 143.5 points and the Standard & Poor’s 500 Index lost more than $136 billion of its value in the seconds that immediately followed the post.

Once the nature of the tweet was discovered, the markets corrected themselves almost as quickly as they were skewed by the bogus information, but the event, known as Hack Crash, demonstrates the need to better understand how social media data is linked to decision making in the private and public sector, according to Tero Karppi, an assistant professor in the University at Buffalo's Department of Media Study.

Based on its speed, Hack Crash was identified as a computer-based event, initiated by sophisticated algorithms designed to identify and evaluate Internet content that could influence markets.

Those algorithms launched what amounted, in human terms, to a panicked trading spree, executing thousands of trades per second,  all because of the assumed gravity of one social media posting.

“We need to begin to identify the different ways social media is being connected to modern finance. This includes an understanding of how things spread online and how the Internet infrastructure is designed for things to spread,” says Karppi.

Though not all tweets are equal, under certain conditions, posts can spread like spilled milk across a table.  Add critical credibility factors to the mix and it’s as though that same milk
has been spilled just as one end of the table is being lifted off the ground.

That’s what happened on the afternoon of April 23, 2013, when hackers broke into the AP’s Twitter account and sent a message that a pair of explosions at the White House had injured President Barack Obama.

As a trusted news organization with millions of Twitter followers, the AP tweet, albeit a malicious hack, had inherent authority and popularity, being retweeted 4,000 times in less than five minutes.

The information spread into financial markets in micro-seconds and the markets responded. Nobody knows for sure what exactly caused the flash crash in the markets, but many financial analysts researched in the study argued that high-frequency traders who use algorithms both to execute trades and to get important signals of the future from social media feeds were involved.

Financial algorithms execute trades based on many variables, sometimes performing autonomously. And they move faster than human thought. Since the markets operate on uncertainties and probabilities, the algorithms presumably responded to the uncertainties and probabilities implied by the false tweet, but Karppi says it’s impossible to know the specific genetics of these algorithms.

Hack Crash is often cited as an indication of a system failure, but Karppi says it’s an example of algorithms working according to design. To understand Hack Crash it’s necessary to continue exploring the relationship between social media, the market and its algorithms.


Vacation, travel and hospitality


tourism
                        in osa

Adventures in Costa Rica are awaiting you.
The Villas De Oros is a jungle paradise with the whole of the Osa within your reach, plus many local activities. Our five villas and suites are unique, sleeping between  two or four guests. They were built to reflect a love and respect for nature. We are happy to serve a wide variety of travelers, families, couples on romantic escapes and adventures seekers. We are near beautiful beaches, many national parks, fine dining and local fare. We are a small hotel, but we will do all we can to help make arrangements for you to insure your adventure of a lifetime!  Please let us know if you will need help with transportation arrangements and what tours you are interested in. Our moderately priced accommodations give you the opportunity to take in the sights and sounds of the surrounding jungle. With river and ocean views as well as an abundance of wildlife, you are sure to enjoy your stay. All four villas have kitchen facilities, two with full inside kitchens and three with mini-kitchens on the balconies overlooking the jungle. We are frequented almost daily by monkeys, macaws, toucans, iguanas, and many other fascinating creatures of Costa Rica. See more at  www.villasdeoros.com  
506-2786-5170 in Costa Rica     303-719-0151 in U.S.
8669-xxx

Mar de
                        Luz
Hotel Mar de Luz
Designed for families to provide peaceful & ecologically balanced environment, where all can enjoy healthy & pollution free stay. Built in harmony with nature & were used to reflect a subtropical atmosphere. Main source of energy is sunlight, converted by solar panels on the roofs. High quality services at a reasonable cost allowing guests to enjoy dream holiday at an attractive rate. Come and enjoy a great vacation. Comfortable accommodation, personalized services and quality amenities. Cosy rooms, breakfast, pools, architectural design, surrounded by lush vegetation in beautiful tropical gardens with coconut, almond, etc. Address : Jacó  beach, next to Subway Restaurant, Avenida Pastor Díaz, Costa Rica. Local phone (506) 2643-3000. Email: info@mardeluz.com.  Web page: www.mardeluz.com.

Hotel
                        Playa Bejuco
Hotel Boutique Playa Bejuco
Cozy, opened in 2007 just 90 minutes from the capital, with good access. Go shopping or enjoy the evening entertainment. Hosting services, friendly, quality and comfortable, discreet under the concept of 100 percent family hotel, the reason we do not allow or endorse any activity related to prostitution or drugs. Natural beauty, recommended for tourists for a relaxing holiday. Nearby is Manuel Antonio National Park. Tours, canopy, fishing, rainforest, horseback riding, ATV, rafting, etc. 20 deluxe rooms equipped with 3 for disabled. All with air conditioning, cable TV, telephone, refrigerator, private bathroom, hot water, free wireless Internet, etc. Maximum 5 people. Main restaurant, pools (adults & children), jacuzzi, private parking, 24 hours security, pool bar, playground equipped. At front desk currency conversions, confirm your flight or coordinate tours. Address : Playa Bejuco, Esterillos, Costa Rica. Local phone (506) : 2779-2000. Email: info@hotelplayabejuco.com   Web page www.hotelplayabejuco.com.
8665-10/24/15

experience Costa Rica
Costa Rica Travel In Paradise Group Tours

Looking for easy booking process for a smooth Costa Rica trip?   We customize wonderful trips to Costa Rica.  We offer you our wealth of knowledge for a great experience . . . a trip of a lifetime!!!

* FAMILY VACATIONS. Our travels take into account the different ages of your family enjoy the most from your Family vacations. Click HERE!

* GROUP TOURS. Whether for a church group, couple of friends, Scout troop or a family group. We provide excellent quality service in your Group Tours. Click HERE!

* EDUCATIONAL TOURS. Tours for universities to schools to elementary schools. We have professionals to help you discover the secrets of Costa Rica in a fun way. Costa Rica Educational Tours. Click HERE!

* GUIDED TOURS. General holiday planning giving you the best value for your investment Costa Rica vacation Packages. Click HERE!

Contact Us:
International Phone: 1-800-9010-114
CR Local Phone: 011-506 -2274-3231
Email: jose@mycostaricatravel.com
Web: www.mycostaricatravel.com

Anywhere
  Get Help Planning Your Adventure Vacation in Costa Rica.
  100% Personalized Vacation Planning Service.
Click HERE!
8644-3/16/16

Howard book
Want to live in Costa Rica?
Read this book!


1,000s have benefited from 17 editions
with its insider information
and time-tested tips
700 carefully researched pages  

Written by Christopher Howard,
Costa Rica's #1 retirement expert
with 35 years experience helping people.
Click HERE!
8577-2/15/15

PRIMO'S SUEŇO CABINAS
La Fortuna
Comfort of your home in the campo, 5 minutes from Fortuna Centro of San Carlos, in the shadow of Volcano Arenal, Flat screen TV, AC, refrigerator, free coffee. Local area activities like four-wheeling, horse riding, zip lining, hot springs, jungle walking tours. Bring your camera for great photos of nature, fishing and swimming, canyoning and wireless internet. Harry Hart, proprietor.  Call for reservations  (506) 2479-8670   and (506) 8682-9219  Email: lagringo2003@yahoo.com
8492-4/1/15

Howard
                        rollover
Will Costa Rica Retirement Work For You?
Find out for yourself on Live In Costa Rica Tours

When you visit Costa Rica, you'll want to discover what you need to know to  make the right choice about moving to this tropical paradise.  Our familiarization tours have won hard-earned credentials that prove general excellence and the right focus.  These are the only retirement tours that are licensed and approved by the Costa Rican government and tourism institute  (ICT). In 2006 we were featured on the NBC Today Show and World News.  In 2010, we won the  prestigious Latin America-Asia Travel Excellence Award for the Best and Most Unique Tour in Latin America.

   * Discover how to make the right choices about moving here
   * Find out how to live affordably
   * See how other expats live. Meet other expats who have made
          the move.
   * Access the country's affordable health care system
   * Informative two-day seminar given by local experts in their
          relevant fields.
   * Tours led by Christopher Howard, 34-year resident, citizen,
          and the author of "The New Golden Door to Retirement
          and  Living in Costa Rica – the Official Guide to Relocation”
 
Click HERE  to learn all about our Association of Residents (ARCR)  approved tours at www.liveincostarica.com
8479-9/11/14

Hidden
                        Garden
Largest art gallery in Guanacaste
Drop in to see some of Costa Rica's finest art
at the largest gallery in Guanacaste.

The Hidden Garden Art Gallery near the Liberia airport is a great place to find quality remembrances of Costa Rica to take home or to decorate your home or office in Costa Rica.  We also offer commissioned pieces so you can create your own unique masterpiece to cherish forever.  With more than 60 artists on exhibit and fine art in 15 rooms full of paintings, prints, sculptures, and diverse artistic expressions, we are easy to locate just 5 kms west of the Daniel Oduber International Airport. Visit our Web site at
or contact us by email:
HiddenGarden@TheVanStoneGroup.com.   
Gallery hours: Tuesdays-Saturdays, 10 a.m. to 4 p.m. Tel. 2667-0592 / 8386-6872; U.S. telephone 702-953-7073. International shipping available.
8623-6/16/15

diligence
Click photo for another video

The Relocation/Retirement tour with the
 *HIGHEST SUCCESS RATE
OF RELOCATION*

 (as reported by the moving companies)
Visit many rental options to actually experience the price/amenity options available in more of the areas chosen by Expats for security, comfort, and quality of life.

Meet many Expats who are willing to share their experiences and how the tour has value long after the “lust” wears off.
See how to choose a Retirement tour video by past guest!
http://www.vimeo.com/5656822

Ask the others what you get for your money, and then compare the quality of accommodations, quality, quantity and variety of food and drink to measure the best value for your money. 

Learn how others “talk the talk” and learn who really can “walk the walk”

Please visit my Web site  to contact my references.
George Lundquist, retirement, relocation columnist, Guide & Developer/Builder. lundquistgeorge@gmail.com

8390-10/2/14

Here's reasonable medical care
Costa Rica's world class medical specialists are at your command. Get the top care for much less than U.S. prices. It is really a great way to spend a vacation. See our list of recommended professionals HERE!amcr-prom



Need a book about Costa Rica?


Check out our special selections available at Amazon logo

HERE!

A.M. Costa Rica
Real estate rentals
Real estate rental agents
Real estate for rent
Business
wanted
Real estate wanted

Real estate rental services (paid category)

beach
                                              view
The vacation homes at Manuel Antonio Estates offers luxury, comfort and peace of mind. We have numerous homes from 2 bedrooms to 8 bedrooms ocean view with private pool,  all within walking distance of the town’s shops and restaurants and just a few minutes to the best beaches and the famous Manuel Antonio national park. While the homes are secluded and hidden among the rainforest, the surrounding area offers adventures like zip lines, whitewater rafting, mangrove kayaking and many more. All of the homes are available for short-term rentals, Fully equipped, Pool, concierge,  parking, cable TV, and Internet. We are happy to assist with all your need for the perfect Costa Rican vacation, Call us for your family vacation package.
TOLL FREE: 1800 346=9724 or (506) 2777-3339     
 http://www.manuelantonioestates.com/properties_for_rent.html
8613-6/24/15

Real estate for rent (paid category)
Lemur
Apartment Lemur del Bosque for rent
San Francisco de Dos Ríos, El Bosque, furnished 2-bedroom, 1-bath apartment, quiet area, free cable TV, WiFi, large patio area, swimming pool, parking, security. Close to San José. $440/month.   Retired persons prefered. Call 8375-6838. Email:  jorge.jorgejim@gmail.com
8697-7/21/15

luxury
                                                apartment
Furnished apartment for rent  Available Now!
Impeccable newly remodeled villa in Villas de Cariari for rent day, week or month. Rates from US$85 per day. Utilities, washer and dryer, car parking,  24 hour security, Wi-Fi, close to airport and shopping. Long=term and corporate renters are accepted.
Contact: Chris English/Spanish U.S. phone: 1-804-699-8073
Costa Rica phone : (506) 6145-7003 Email: cnpfx@icloud.com
8683-8/11/15

San
                                                Ramon
Mountain home w/million dollar view near San Ramón
Beautiful home in the mountains near San Ramón with 180-degree view of the gulf of Nicoya. 7 miles from San Ramón, 1 mile from Interamericana highway. 3,200 foot elevation so temp is 65 to 75 year around. Electric gate, private drive. house built in 2010. 2 bedrooms, 1 baths, appliances included. High-speed internet installed, Direct TV via sling box on Internet.  Rent per month $750 plus utilities with free internet.  Price for Sale $179,000   Contact Mike: mmpeace@hotmail.com  Check out slide show HERE!
8670-6/30/15

Beautiful 2-bedroom 2-bathroom American-style apartments with an elevator to your front door in a secure building located in Gringo Gulch the American Section of downtown San José. Costa Rica. Located between the Hotel Del Rey, the Hotel Mona Lisa and the Sportsman's Lodge and The Zona Blue (AKA) Little Habana across the street from Harry's Poas Bar, and next to the Holiday Inn.
apartment view
 There are 15 restaurants and American- style bars on this block and four supermarkets within a few blocks. There are 5 casinos within 2 blocks and dozens of hotels around this apartment. Included in your rental price, fast Internet, the best they have in Costa Rica, cable TV with 80 stations, water, washer
 and dryer. All you pay extra for is electricity. You have your own meter and receive a bill from the electric company every month.  This apartment has a American-style hot water system, hot water in both bathrooms and the kitchen. There is a 25-foot balcony to sit on and watch the people in San José walk by. The neighborhood Barrio Amón is the safest in San José For photos and more information contact:  rentnowcr@gmail.com.
8677-6/11/15

Jaco
                                                condo
Condo in Jacó for rent
Two-bedroom, 1-bath condominium available for rent starting June 1st in Corteza del Sol in the Quebrada Seca, just across the Costanera from Jacó. 24-hour security, wifi/cable, AC, luxurious amenities, kitchen includes everything you need to cook, gorgeous pools just steps from your front door. 15 minute walk to town or quick bike ride. ¢2,000 taxi to center of town. Short-term renter is fine. Long-term would be great! Looking for someone low-key who will fit in well with the complex. $950/month including cable & internet, NOT INCLUDING ELECTRIC! Call 8725-0344 or email emilyanneaston@gmail.com
8616-4/9/15

Palmares graphic

Homes for rent in Palmares, Alajuela

See our web page: palmarescostarica.us
8625-5/9/15


Coco
                                                condo
Condo for rent.
Conveniently located just a 200-meter walk to the beach. In the favorite community of Las Palmas, this condo is a perfect vacation home and/or great for vacation rental income.  The condo is located on the 2nd level offering beautiful vaulted ceilings, front and back balcony, pool and mountain view. Screens in every window/door, Air condition in both bedrooms and at living room. The condo is in perfect condition. It has been recently painted and super well-kept, new appliances, fully furnished. Wired to have own washer dryer. It has been the residence of the owners since they built it. Never rented out to third parties. The owners are selling as they are moving to the Central Valley.  The community has a great-size pool and beautiful landscaping and large parking. Just step out your condo and in less than 5-minute walk be swimming in the ocean! A must see! Rate $795 per month. Contact Bob Mobile C.R. ( 506 ) 8392-7520. E-mail: redlclark@aol.com
8602-5/15/15

Tropical Homes of Costa Rica is offering the best selection of vacation homes, condos and long-term rental homes in Playa Flamingo, Playa Potrero and Playa Brasilito on  the Pacific Gold Coast of Guanacaste. A wide selection of private residencies is providing an excellent choice for your stay in this beautiful part of Costa Rica.
tropical
We are offering homes for every budget and every need.
Please visit our Web page at www.tropicalhomesofcostarica.com or contact us at rentals@tropicalhomesofcostarica.com
or call at (506) 2654-5442.
8592-8/18/15







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