Nassim Nicholas Taleb

Praise for The Volatility Surface "I'm thrilled by the appearance of Jim Gatheral's new book The Volatility Surface. The literature on stochastic volatility is vast, but difficult to penetrate and use. Gatheral's book, by contrast, is accessible and practical. It successfully charts a middle ground between specific examples and general models--achieving remarkable clarity without giving up sophistication, depth, or breadth." --Robert V. Kohn, Professor of Mathematics and Chair, Mathematical Finance Committee, Courant Institute of Mathematical Sciences, New York University "Concise yet comprehensive, equally attentive to both theory and phenomena, this book provides an unsurpassed account of the peculiarities of the implied volatility surface, its consequences for pricing and hedging, and the theories that struggle to explain it." --Emanuel Derman, author of My Life as a Quant "Jim Gatheral is the wiliest practitioner in the business. This very fine book is an outgrowth of the lecture notes prepared for one of the most popular classes at NYU's esteemed Courant Institute. The topics covered are at the forefront of research in mathematical finance and the author's treatment of them is simply the best available in this form." --Peter Carr, PhD, head of Quantitative Financial Research, Bloomberg LP Director of the Masters Program in Mathematical Finance, New York University "Jim Gatheral is an acknowledged master of advanced modeling for derivatives. In The Volatility Surface he reveals the secrets of dealing with the most important but most elusive of financial quantities, volatility." --Paul Wilmott, author and mathematician "As a teacher in the field of mathematical finance, I welcome Jim Gatheral's book as a significant development. Written by a Wall Street practitioner with extensive market and teaching experience, The Volatility Surface gives students access to a level of knowledge on derivatives which was not previously available. I strongly recommend it." --Marco Avellaneda, Director, Division of Mathematical Finance Courant Institute, New York University "Jim Gatheral could not have written a better book." --Bruno Dupire, winner of the 2006 Wilmott Cutting Edge Research Award Quantitative Research, Bloomberg LP

From a leading authority on population genetics, a deep dive into ancestry and origins in the Middle East that interrogates culture, identity, migration, and ethnicity to reframe what it means to be indigenous to any land. In recent years, as companies like 23andMe and Ancestry.com have made genetic testing available across the globe, it has become relatively simple to find out where your ancestors came from. But acclaimed geneticist Pierre Zalloua believes that these test results have led to a dangerous oversimplification of what one's genetic heritage means. People have conflated genetic ancestry with other ways of defining themselves such as "origin," "ethnicity," and even "race" but give no attention to the complexities that underlie these concepts.Nowhere is this interplay more important, and more controversial, than in the Levant--an ancient region known as one of the cradles of civilization, and which now includes modern-day Palestine, Israel, Jordan, Lebanon, Syria, and parts of Turkey. Born in Lebanon, Zalloua grew up surrounded by people for whom this question of identity was one of life or death importance. In Ancestors, Zalloua uses the Levant to grapple with what being indigenous really means. He finds that DNA does not determine a culture or an ethnicity, but instead, one must look to their own history to understand their identity. Building on years of research, Zalloua tells a history of the Levant through the framework of genetics that spans from 100,000 years ago, when humans first left Africa, to the 21st century and modern nation-states. World-shifting and accessible, Ancestors will reshape the way you think about where our culture really comes from.

"Den Sorte Svane har ændret måden, jeg ser verden på." – Daniel Kahneman, nobelpristager i økonomi Den Sorte Svane blev en international bestseller, da den udkom i 2007 og gjorde med ét den ameri­kansk-libanesiske forsker og tidligere børsmægler Nassim Nicholas Taleb verdensberømt.Den Sorte Svane handler om begivenheder, som er sjældne, højst usandsynlige, og som har en enorm effekt, når de indtræffer – begivenheder, som vi mennesker efterfølgende udtænker for­klaringer på, så de fremstår langt mindre tilfæl­dige og ligefrem forudsigelige. Men vi gør klogt i at indse, at Sorte Svaner er helt igennem ufor­udsigelige, og at vi helt skal lade være at prøve at forudsige dem. I stedet skal vi indrette os, så vi tåler dem og drager fordel af dem.Taleb væver sine ideer og tanker sammen på tværs af en dyb indsigt i filosofi, litteratur, sprog, mate­matik og økonomi. Han er en forfatter med sin helt egen skrivestil – fabulerende, indsigtsfuld, morsom og provokerende.Med sit mesterværk Den Sorte Svane har Taleb udviklet en både indflydelsesrig og original idé til en ny forståelse af verden. Siden udgivelsen i 2007 er begrebet en Sort Svane blevet populært i et omfang, så det nu bruges til at beskrive og forstå aktuelle begivenheder, både internationalt og i den offentlige debat i Dan­mark. Sådan blev eksempelvis Den sorte svane navnet på en meget omtalt tv-dokumentar sendt på TV 2 i 2024."Talebs bog er en mageløs og vidunderlig begyn­delse på den proces, hvor vi finder frem til en helt anden måde at forholde os til verden – lyttende, snarrådig og sej." – Tor Nørretranders, forord til Den Sorte Svane "Enormt underholdende – medrivende … let at gå til." – Financial Times"En af de tolv mest indflydelsesrige bøger siden anden verdenskrig." – Sunday Times"Fremragende og banebrydende, nu for første gang på dansk." – Lektørudtalelse, DBC"Denne idé, Sort-Svane-ideen, om sjældne begi­venheder, ekstreme begivenheder, der dominerer, hvad der rent faktisk sker i vores liv – rummer en umådelig vigtig indsigt og er dybt original." – Daniel Kahneman, nobelpristager i økonomi og forfatter til At tænke – hurtigt og langsomt"[Taleb er] … en helt igennem signifikant filosof; og med det mener jeg, en som er i stand til at ændre måden, vi opfatter verden på, alene ved sine ideers styrke, originalitet og sandhedsværdi." – Will Self, GQ"Overbevisende … stærkt tankevækkende." – The TimesNassim Nicholas Taleb (f. 1960) er en ameri­kansk-libanesisk forsker, tidligere børsmægler og bestsellerforfatter. Han blev verdensberømt med udgivelsen af Den Sorte Svane i 2007. I mere end 20 år arbejdede Taleb som børsmæg­ler, siden blev han forsker og essayist, beskæfti­get med filosofiske, matematiske og (overvejende) praktiske problemer relateret til sandsynlighed. Taleb har udgivet flere bestsellere, bl.a. Fooled by Randomness (2001), Antifragile (2012) og Skin in the Game (2018). De indgår alle i det filosofiske fembindsværk Incerto, der er oversat til mere end 40 sprog.

What is a safe haven? What role should they play in an investment portfolio? Do we use them only to seek shelter until the passing of financial storms? Or are they something more? Contrary to everything we know from modern financial theory, can higher returns actually come as a result of lowering risk? In Safe Haven, hedge fund manager Mark Spitznagel—one of the top practitioners of safe haven investing and portfolio risk mitigation in the world—answers these questions and more. Investors who heed the message in this book will never look at risk mitigation the same way again.

7ikam falsafiye habb el keteb ytarjema la loughato el omm

What is a safe haven? What role should they play in an investment portfolio? Do we use them only to seek shelter until the passing of financial storms? Or are they something more? Contrary to everything we know from modern financial theory, can higher returns actually come as a result of lowering risk? In Safe Haven, hedge fund manager Mark Spitznagel—one of the top practitioners of safe haven investing and portfolio risk mitigation in the world—answers these questions and more. Investors who heed the message in this book will never look at risk mitigation the same way again.

A bold work from the author of The Black Swan that challenges many of our long-held beliefs about risk and reward, politics and religion, finance and personal responsibility In his most provocative and practical book yet, one of the foremost thinkers of our time redefines what it means to understand the world, succeed in a profession, contribute to a fair and just society, detect nonsense, and influence others. Citing examples ranging from Hammurabi to Seneca, Antaeus the Giant to Donald Trump, Nassim Nicholas Taleb shows how the willingness to accept one's own risks is an essential attribute of heroes, saints, and flourishing people in all walks of life. As always both accessible and iconoclastic, Taleb challenges long-held beliefs about the values of those who spearhead military interventions, make financial investments, and propagate religious faiths. Among his insights: - For social justice, focus on symmetry and risk sharing. You cannot make profits and transfer the risks to others, as bankers and large corporations do. You cannot get rich without owning your own risk and paying for your own losses. Forcing skin in the game corrects this asymmetry better than thousands of laws and regulations. - Ethical rules aren't universal. You're part of a group larger than you, but it's still smaller than humanity in general. - Minorities, not majorities, run the world. The world is not run by consensus but by stubborn minorities imposing their tastes and ethics on others. - You can be an intellectual yet still be an idiot. Educated philistines have been wrong on everything from Stalinism to Iraq to low-carb diets. - Beware of complicated solutions (that someone was paid to find). A simple barbell can build muscle better than expensive new machines. - True religion is commitment, not just faith. How much you believe in something is manifested only by what you're willing to risk for it. The phrase skin in the game is one we have often heard but rarely stopped to truly dissect. It is the backbone of risk management, but it's also an astonishingly rich worldview that, as Taleb shows in this book, applies to all aspects of our lives. As Taleb says, The symmetry of skin in the game is a simple rule that's necessary for fairness and justice, and the ultimate BS-buster, and Never trust anyone who doesn't have skin in the game. Without it, fools and crooks will benefit, and their mistakes will never come back to haunt them.

The landmark five-book series--now in a beautifully designed, cloth-bound deluxe hardcover boxed set The Incerto is an investigation of opacity, luck, uncertainty, probability, human error, risk, and decision making when we don't understand the world, expressed in the form of a personal essay with autobiographical sections, stories, parables, and philosophical, historical, and scientific discussions, in non-overlapping volumes that can be accessed in any order. The main thread is that while there is inordinate uncertainty about what is going on, there is great certainty as to what one should do about it. This deluxe boxed set includes: FOOLED BY RANDOMNESSTHE BLACK SWANTHE BED OF PROCRUSTESANTIFRAGILESKIN IN THE GAME

Från författaren bakom den internationella succén Den svarta svanen kommer en svindlande uppgörelse med ansvar och maktutövning i 2000-talet. Bara den som har något att förlora – skin in the game – kan på riktigt förstå konsekvenserna av sina beslut. Mycket av samtidens maktutövning – i politiken, finansvärlden och medierna – saknar helt denna koppling. Det gör Nassim Nicholas Taleb heligt vred. Läs en underhållande och befriande aha-upplevelse som kan förklara mycket av politikerförakt, Trumps seger i valet, och varför de kristnas Gud tvunget skulle ha en son som vandrade på jorden.

Why should we never listen to people who explain rather than do? Why do companies go bust? How is it that we have more slaves today than in Roman times? Why does imposing democracy on other countries never work?The answer: too many people running the world don't have skin in the game. In his inimitable, pugnacious style, Nassim Nicholas Taleb shows that skin in the game applies to all aspects of our lives. It's about having something to lose and taking a risk. Citizens, lab experimenters, artisans, political activists and hedge fund traders all have skin in the game. Policy wonks, corporate executives, theoreticians, bankers and most journalists don't.As Taleb says, "The symmetry of skin in the game is a simple rule that's necessary for fairness and justice, and the ultimate BS-buster," and "Never trust anyone who doesn't have skin in the game. Without it, fools and crooks will benefit, and their mistakes will never come back to haunt them".