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Can do more harm than good
Fat tails and more
Reply to the previous reviewera) After spending a full chapter (2) on empirical data and faithful models to describe them, we only price options using...the Brownian motion, says our reviewer (not even the Black-Scholes model, adds he). Well, either the reviewer has only casually browsed through our book, or this is total bad faith and disinformation. After discussing a general option pricing formula, we indeed illustrate it first (4.3.3) with the Black-Scholes model, then with Bachelier's (Brownian) model which, as we explain, is actually a better model for short term options. But the rest of the chapter is entirely devoted to non-Gaussian effects: a theory of the smile, its relation with kurtosis and long-ranged correlation in the volatility, and comparison with actual market smiles (4.3.4), and more importantly, the hedging strategies and residual risk (4.4), alternative hedging strategies for Value-at-Risk control (4.4.6), etc. The emphasis on risk, absent in the Black-Scholes world, is our main message, and partly justifies the title of our book.
b) "There is no statistical physics" in our book, moans the reviewer. Our aim was not to draw phoney analogies, but to present this field in the spirit of statistical physics, with what we feel is an interesting balance between intuition and rigour. (Many physicists feel stranded when reading standard mathematical finance books, where data is scarce, and rigour hides the inadequacies of the models). However, there are several genuine inputs from statistical physics, e.g. data processing, approximations, simple agent based models (2.8-9), functional derivatives to obtain optimal hedges (4.4), saddle point estimates of the Value at Risk for complex portfolios (5.4) and finally, Random Matrices that the reviewer finds unduly complex -- perhaps only because new to him. However, this is contained in "starred" section, indicating that it can be skipped at first reading, as many more advanced sections.
Two more details. We indeed sometimes consider independent random variables, sometimes only uncorrelated, hopefully not confusing the two. If the reviewer spotted incorrect statements, we would be grateful to him if we can correct them in further editions. Second, our book is not meant to provide ready to implement recipes but to present a different way of thinking about finance. Nevertheless, many of the ideas have already been implemented and are used by several (open minded?) financial institutions.


Uncommon Margaret Maron
Uncommon Clay
I found this book to be "uncommonly" good!Deb is again on the road, visiting Asheboro this time, and the reader gets the treat of learning more about NC folk crafts...(prior novels have featured furniture), this time with the work of Carolina's folk pottery industry. Some interesting and colorful new characters and friends are added to the story line. The book also continues the saga of Deb's romances, and how badly they go sometimes. In this tale, Deb has two embarrassing scrapes with the down side of relationships. Maron also takes the time to insert a small tidbit about Oscar Nauman, a character from her Sigrid Harald series, in a way that makes the reference seem real and natural.
With its interesting plots, spunky heroine, delightful descriptions of large southern families and friends, and its ability to educate the reader on the life and times of beautiful NC, the Knott series is a fast, entertaining, and well written group of books. Uncommon Clay still leaves me hungry for more!


Time Warp Therapy
Great Insight.
Letting Go of Anger

Harry Potter Mom
A great book for young children.
Harry Potter - The best ficcion book!

AN APT TITLEpale sexuality, and show-offy displays of her academic credentials in literature. I kept hoping for some original thoughts and theories of human behavior, but was disappointed and bored. Much of this material has been explored before and with greater skill and intelligence.
As I moved from page to page it reminded me of slogging through the swamps of Mississippi, on bivouac, back in 1945. It was something that had to be done, but I wondered why.
4 1/2 stars; almost perfect
Still Life

Sigh . . .Who cares if these books have the blessing of anything or anyone. They are entertaining and fictional. They are nothing more words on paper.
It's very sad to see that there are folks out there that must label everything.
Sometimes a cigar is just a cigar.
Understanding Potter as literature makes a differenceThis book by Francis Bridger is one of the best of the bunch of books seeking to look more deeply at the world of Harry Potter. Instead of arguing the specifics of the magic or apparent 'occult' Bridger takes a different path showing how Rowling skillfully weaves a tale in the fine tradition of British literature, using themes, images, allusions, etc. throughout her books which can be found in a great deal of writings written by those who call the British Isles home.
We in America, however, love practicality, have a hard time getting literary methods, and get confused, or angry, when our sensibilities are apparently attacked by terminology. Rowling, rather than endorsing any sort of scandalous occultism, is instead writing a tale of great heroism, discovery, and even spirituality which uses 'magical' themes to point to deeper truths, truths which are inherent in a Christian understanding of the world. Before we Christians attack the use of the word magic in these great texts, we must first attend to these texts as literature, and must learn how to understand how to read all of Potter's tales, present and future, in the context of a great tradition of fantasy writings.
Yes, these books are rousing tales but any book which creates the kind of sensation as these must also be speaking deeply to our present society. Bridger explains these deeper truths and messages in their appropriate context, and makes re-reading Potter that much more enjoyable and worthwhile. Plus, he is a very engaging author himself, whose nonfiction prose is almost as engaging as Rowling's.
This is a very fair, erudite, interesting study of what is arguably the most influential literature of this generation. Being spiritual does not mean we can turn off our minds, blindly accepting what various gurus tell us to believe. Nor is christophobia a reason to deny the importance of studying great literature, at all the levels which makes great literature great.
If you are interested at all in the Potter phenomenon this is the one book, besides Rowling's, you should get. No, this book may not interest everyone, and those who rate this present book low without reading it themselves are guilty of the same ignorant prattle which afflicts many of those in the Christian world. We all can and should think, and should discuss intelligently cultural issues before us. Bridger aids immensely and succinctly in this particular discussion.
Taking the road less takenThis book takes a different approach, one of positive analysis with thoughtful conclusions -- but not forcing those conclusions down the reader's throat. It is extremely well written -- and is as readable and enjoyable as the HP books themselves.
'A Charmed Life' is divided into 5 long chapters, plus a shorter 6th with conclusions, and the long chapters are helpfully broken by mid-chapter headings. These chapters give an indepth look at some of Rowling's favorite issues, such as:
(1) actions have consequences,
(2) beware of the deceitfulness of appearances [a major lesson in LOTR],
(3) the target audience [first, JKR herself; second, those that like an exciting mystery], and I might add parenthetically, when Jo Rowling is interviewed, she constantly insists that her books are written for older teens and adults.
(4) the world view -- what you see is not all there is, [helpful to the Christian]
(5) the complicatedness of the moral world -- when things aren't exactly black and white,
and (6) periodic comparisons with 'The Chronicles of Narnia', LOTR, and Lewis Carroll's works.
Bridger looks at the issues of faith, fact, and truth, as portrayed by Jo Rowling, and finds much that is compatable to the way Christians are to think and believe.
'Charmed' is a helpful book to those who want to think carefully about these things.
To those who like their conclusions given to them, it is not so helpful.


Etchison is a masterNot all of them are great-the protagonist of "Call Home" is a
complete idiot and deserves everything he gets-but stories like "The Dog Park" and "When They Gave Us Memory" make up for
any weaknesses. You can get lost in the beauty of Etchison's prose and you should,if you love to read...
A superb collectionIn "The Dead Cop" we find a man slowly losing himself as Los Angeles itself succumbs to rioting. As the city tears itself apart, so does our protagonist, who searches for meaning behind the death of his son. ...P>Yes, his writing is a bit vague for those who want easy answers, but if you're willing to give each of his tales the time they deserve, you'll find a great deal of power in this book.
DDodd should check his facts!

Mam pierwszĿ czĿſĿ... Kiepsko wydana...I mean... This publish its no good. When I read that book in Russian (I come from Poland) I was angry! Thirst book "Garri Pottzer i filosofiskii kamen" was publisht in Ukraina in much better paper and translate.
Harry Potter and the Goblet of FireHarry Potter and the Goblet of Fire is a great book to me because I like lots of action in my books. So if your looking for a lot of action this is the book for you. I also think this story setting makes the book very interesting as well. Mostly because its interesting to reading about the a magical fantasy world. I would definatley recomend this book to anyone who likes action filled books.
HP4 (RUS)

Journal
NEAT-O!
Great Journal

J. K. Rowling's contribution to literature
Great Book!
Just what is great literature anyway?
The title, while promising, is quite arrogant: not only there is no "theory of financial risks" in the book but many of the main issues of risk management are not even mentioned: Value at Risk receives less than a page at the end, while hedging of exotic options is not even an issue.
Also, while the first part of the book insists on choosing the correct distribution for price returns, the chapter on options exclusively gives computations for the case of ...Brownian motion (not even exponential Brownian motion)! One is left wondering whether these fancy models presented in the first part were worth mentioning?
Another point is the readership of this book: given the notational complexity of the book and the analogies with physics, only a PhD in theoretical physics can possibly find this book readable. In fact, a finance student will find it too light on the finance side while a math-minded student will find it too sloppy and imprecise.
The surprisingly low level of mathematical rigour - one confuses regularly "uncorrelated" with "independence"- is nevertheless accompanied by an incredibly sophisticated set of tools such as random matrix theory, which are exotic even for professional researchers. Perhaps it would be better to spend more time explaining the concept of stochastic volatility or nonstationarity than rocketing the reader into unknown grounds...
I come to the conclusion that the aim of the book is more to impress the reader about the technical sophistication of the authors than to teach anything in a clear manner.
Although OK as a bedtime reader, this book certainly does not contain anything one can practically implement: in fact the presentation is so imprecise that one is lost in the successive and uncontroled approximations, not knowing at the end what is the algorithm proposed to solve a given problem.