The sleeper hit of the Cyclades, Serifos is the summer retreat of interior designers and architects who prefer to keep the sandy beaches to themselves. (One French home-owner is so protective of her hideaway that she tells all her friends she summers on nearby Sifnos.) Even in August, you’ll find coves where you can skinny dip in blissful solitude. That’s because the best beaches (Kalo Ambeli, Vagia, Skala) are only accessible via bone-rattling dirt roads or donkey tracks. Better still, rent a motor boat from the laidback harbour, Livada. Make sure to moor outside Anna’s taverna on Sikamia beach for freshly caught fish and garden-grown salads.

A complicating factor is that of origin-destination control ("O&D control"). Someone purchasing a ticket from Melbourne to Sydney (as an example) for A$200 is competing with someone else who wants to fly Melbourne to Los Angeles through Sydney on the same flight, and who is willing to pay A$1400. Should the airline prefer the $1400 passenger, or the $200 passenger plus a possible Sydney-Los Angeles passenger willing to pay $1300? Airlines have to make hundreds of thousands of similar pricing decisions daily.
Excellent choice of islands, though getting between them presents one or two challenges (they are not as conveniently connected like the Cycladic or Dodecanese islands so island hopping is not as popular in this island group). All three islands are served by airports with year-round connections to Athens and in the Summer with international charter flights from Europe. Let’s take the pros and cons of each island.
Folegandros – which means ‘iron hard’ in ancient Greek – is as barren as its name suggests. Fruit trees are protected from fierce winds by rings of stones. You won’t find sandy beaches lined with sunbeds; only limpid, pebbly coves, such as Katergo, Ambeli and Livadaki. Water taxis service some beaches in high season; otherwise you’ll have to scramble down rocky footpaths to cool off. On your way home, stop at Synantisi in Ano Meria for the island speciality of matsata (goat or rabbit stew with hand-made pasta).
Growth rates are not consistent in all regions, but countries with a de-regulated airline industry have more competition and greater pricing freedom. This results in lower fares and sometimes dramatic spurts in traffic growth. The U.S., Australia, Canada, Japan, Brazil, India and other markets exhibit this trend. The industry has been observed to be cyclical in its financial performance. Four or five years of poor earnings precede five or six years of improvement. But profitability even in the good years is generally low, in the range of 2–3% net profit after interest and tax. In times of profit, airlines lease new generations of airplanes and upgrade services in response to higher demand. Since 1980, the industry has not earned back the cost of capital during the best of times. Conversely, in bad times losses can be dramatically worse. Warren Buffett in 1999 said "the money that had been made since the dawn of aviation by all of this country's airline companies was zero. Absolutely zero."[88]

In postcard-pretty Artemonas, all roads lead to Theodorou, purveyors of nougat wafers and almond sweets since 1933. You can eat in your bikini at Omega 3, where locally foraged and fished ingredients are given an exotic twist: baby-calamari tempura, smoked eel in chilled melon soup with wasabi, and chickpea sorbet with wild apricot jam and pine nuts. Lobsters are plucked straight from the sea at Heronissos, then served with spaghetti on the jetty. It's just the right balance of low-key luxury and unspoiled authenticity. Rather like Sifnos itself.
Mykonos had gay clubs and sunrise parties long before rave culture was even invented. Its bohemian allure hasn’t faded since the 1960s, although the once naked beaches now have nail bars, personal trainers and house music pumping out all hours. The influx of supermodels and superyachts has inspired hot new hotels and restaurants. The hippest place to show off your abs is Scorpios, a louche beach bar that puts Ibiza's finest in the shade (book a cabana to watch the sunset). After hours, it's always Astra, where you might find Keith Richards chatting up Karolina Kurkova. The gay crowd has dwindled, but drag queens and oiled bodybuilders make a splash at Jackie O, overlooking Super Paradise bay.
Codesharing is the most common type of airline partnership; it involves one airline selling tickets for another airline's flights under its own airline code. An early example of this was Japan Airlines' (JAL) codesharing partnership with Aeroflot in the 1960s on Tokyo–Moscow flights; Aeroflot operated the flights using Aeroflot aircraft, but JAL sold tickets for the flights as if they were JAL flights. This practice allows airlines to expand their operations, at least on paper, into parts of the world where they cannot afford to establish bases or purchase aircraft. Another example was the Austrian–Sabena partnership on the Vienna–Brussels–New York/JFK route during the late '60s, using a Sabena Boeing 707 with Austrian livery.
Java, with a population of 140 million, makes its first appearance on this list. Celebrated for its ancient culture, breathtaking vistas, and UNESCO World Heritage sites like the Borobudur Temple Compounds, the island also offers the opportunity to indulge in modernity (five-star hotels abound). Waterfalls, volcanoes, protected parks, and white-sand beaches also allow visitors to get away from the thrum.
Located on the eastern coast of Malaysia, the Perhentians consist of two islands. Both are stunningly covered with a lot of palm trees, wide beaches, and crystal blue water. There’s not much to do here, and visitors typically lay on the beach all day, resting from last night’s drinking. It’s the perfect place to put up a hammock. A strong monsoon season limits when to go to between March and October. During the other times, it’s best to head to Thailand, where the weather is nicer.
Located in southern Thailand, this semi-off-the-map island is one of my favorites and the month I spent here remains one of my most fond memories. Here on Ko Lipe, the super-friendly locals bring in the daily catch for amazing seafood, as the island’s water is teeming with life. Accommodation is still basic, and most places turn off the electricity around midnight.
Since airline reservation requests are often made by city-pair (such as "show me flights from Chicago to Düsseldorf"), an airline that can codeshare with another airline for a variety of routes might be able to be listed as indeed offering a Chicago–Düsseldorf flight. The passenger is advised however, that airline no. 1 operates the flight from say Chicago to Amsterdam, and airline no. 2 operates the continuing flight (on a different airplane, sometimes from another terminal) to Düsseldorf. Thus the primary rationale for code sharing is to expand one's service offerings in city-pair terms to increase sales. 
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