Average customer rating:
|
Kosten- und Erlösrechnung. Das Arbeitsbuch (Springer-Lehrbuch)
Volker Lingnau , and
Hans Schmitz
Manufacturer: Springer-Verlag Berlin Heidelberg
ProductGroup: Book
Binding: Paperback
All German Books
| German
| Foreign Language Books
| Specialty Stores
| Books
ASIN: 3540659838 |
Average customer rating:
|
Managing Older Workers : Overcoming Myths and Stereotypes (Fifty-Minute Ser.)
Gordon F.; Keppler, Kay (editor) Shea
Manufacturer: Crisp Publications, Incorporated
ProductGroup: Book
Binding: Paperback
ASIN: B000KPN96C |
Average customer rating:
- Book was excellent, alot of good advice on wilderness living
|
Wilderness Wife
Bradford Angier
Manufacturer: Macmillan Pub Co
ProductGroup: Book
Binding: Paperback
General
| Biographies & Memoirs
| Subjects
| Books
Canadian
| Historical
| Biographies & Memoirs
| Subjects
| Books
Maritime Provinces
| Regional Canada
| Biographies & Memoirs
| Subjects
| Books
General
| Agricultural Sciences
| Professional Science
| Professional & Technical
| Subjects
| Books
General
| Canada
| Americas
| History
| Subjects
| Books
Similar Items:
-
One Acre and Security: How to Live Off the Earth Without Ruining It
ASIN: 0020582307 |
Customer Reviews:
Book was excellent, alot of good advice on wilderness living.......1998-08-14
I really enjoyed reading this book. There was quite a bit of good advice concerning wilderness living and survival. Also included interesting tales concerning Brad and Vena Angiers experiences living in the British Columbia wilderness. I found the style of writing to be quite easy to read and the explanations to be easily understandable. Would recommend this book to anyone who is interested in living in the wilderness or just enjoys reading about people who have done it.
Average customer rating:
|
Wilderness wife;: The story of Rebecca Bryan Boone
Etta DeGering
Manufacturer: D. McKay Co
ProductGroup: Book
Binding: Unknown Binding
General
| History & Historical Fiction
| Children's Books
| Subjects
| Books
General
| United States
| History & Historical Fiction
| Children's Books
| Subjects
| Books
ASIN: B0007E0680 |
Average customer rating:
|
Wilderness Wife, the Story of Rebecca Bryan Boone
Etta Degering
Manufacturer: David McKay Co.
ProductGroup: Book
Binding: Hardcover
ASIN: B000KMD77G |
Average customer rating:
- absolutely wonderful
- Leaving the Wilderness
- Still I Rise
- Superb!!!!!!
- Free to be Me
|
Leaving the Wilderness
Tonya Blount
Manufacturer: Dunamis Publications
ProductGroup: Book
Binding: Paperback
Visionary Fiction
| Fiction
| Religion & Spirituality
| Subjects
| Books
Metaphysical
| Genre Fiction
| Literature & Fiction
| Subjects
| Books
ASIN: 0972455302 |
Book Description
Ms. Blount's protagonist, Jordan Baez is a beautiful and talented woman, married eleven years to Franklin Baez with whom she has three children. Jordan endures many tragedies, yet her astonishing determination to survive and succeed allows her to bend, but not to break.
Walk alongside Jordan on her journey, a journey that is reflected in the lives of many women past and present. Take part in revelations, which have forged an iron will, one so necessary to survive, no woman should be without!
Customer Reviews:
absolutely wonderful.......2005-06-07
I was a little hesitant in purchasing this book and I was pleasantly surprised at what a gifted writer this woman is. Can't wait to the sequel!!
Leaving the Wilderness.......2003-08-05
From a man's point of view, after hearing the basic idea and theme of Leaving the Wilderness, I didn't think I would enjoy it. So, after buying it for my wife and her not reading it, I picked it up one day, much to my delight, and I could not put it down. Another reviewer said that this is a book that "every woman should read" and I TOTALLY DISAGREE. THIS IS A BOOK THAT EVERYONE SHOULD READ! Your emotions will range from happiness, sadness, anger, etc., etc. You will love this book, I PROMISE!
Still I Rise.......2003-06-10
Author and poet, Tonya Blount unfolds the story of a young woman's journey for self-love and restoration in Leaving The Wilderness. For eleven years, Jordan Baez has endured physical, verbal and mental abuse at the hands of her malicious husband, Franklin. When a night of unbridled passion, precipitated by Franklin's drunken state, evolves into sexual assault, another member of the Baez family is conceived and Jordan's disdain for her husband begins. Torn between hatred for Franklin and love for her children, Jordan must decide if she will remain in a contemptible marriage or abandon Franklin and his callous nature for good.
Tonya Blount has illustrated an unforgettable and emotive female protagonist in Leaving The Wilderness. Ms. Blount's poetic writing style is both fluid and enchanting allowing readers to empathize with the main character. I would have liked to read more about Jordan's rediscovery of self as she mends the broken pieces of her life. Nevertheless, Ms. Blount's debut novel will speak to women in the midst of their wilderness experience and serve as a testimony to those who have been stripped of their self-worth. A must read for men and women alike.
Reviewed by Nicki Lancaster
APOOO BookClub
Superb!!!!!!.......2003-03-10
Author :Tonya Blount, Novel: "Leaving the Wilderness"
"Leaving the Wilderness" was ingeniously written It discloses how an abusee overcame many dire impediments and triumphantly rised above it all.
Revenge wasnt the storyline in Blounts novel. Eventhough she battled several diverse worlds: Good verses Evil; Love verses Hate; Emotions verses Spiritual.
She ensured us that her lessons were well erudite. By allowing us to walk candidily with her to that spiritual intercession . Where she discovered she found her place of counterpoise.: Her Lord and Savior!
As a reader , I'd like to applaud and thank Ms.Tonya Blount, for showing myself. That if we keep God first and believe with all our hearts.. That we too, can obviate any stumbling blocks in ones life. While holding steadfast to faith; We too can avoid our pitfalls along the way. But we must believe!
As i conclude with (Psalms 23:4..... "Yea, though i walk through the valley of shadow of death, I will fear no evil, for you are with me, Your rod and Your staff, will comfort me.)
Free to be Me.......2002-12-12
This novel was great! It made me feel as though I am not alone. I experienced similar circumstances and I used to feel stupid and alone. But through reading this book, I found that I am not the only woman who has experienced the degrading, jealous hatred from a male counterpart. More than anything this book was not just about the abuse but how it was overcome. When you have faith and a firm belief and understanding of a higher power you will always come out on top regardless of what you are going through!! Ms. Blount I can not wait for your next novel. Jordan feels like one of my sister friends!! You go girl.
Average customer rating:
|
Roadless Area Adventures of a man and wife in the American Wilderness and other remote places from the Alaskan tundra to...
Paul Brooks
Manufacturer: Alfred A. Knopf
ProductGroup: Book
Binding: Hardcover
ASIN: B000W5D89I |
Average customer rating:
|
Wilderness Wife
Bradford and Vena Angier
Manufacturer: Pennsylvania: Chilton Book Company, 1976
ProductGroup: Book
Binding: Hardcover
ASIN: B000NXKDP6 |
Average customer rating:
|
Wilderness Wife
Degeering
Manufacturer: David McKay Company Inc
ProductGroup: Book
Binding: Hardcover
ASIN: B000JBZ3I4 |
Average customer rating:
|
Wilderness wife
Kathrene Pinkerton
Manufacturer: Carrick and Evans
ProductGroup: Book
Binding: Unknown Binding
General
| 19th Century
| United States
| Americas
| History
| Subjects
| Books
ASIN: B000892K88 |
Average customer rating:
|
Wilderness Wife/Asylum/Alone/Dry Guillotine/How to Live on 24 Hours a Day/RFD/Man, the Unknown/Reaching for the Stars/Wake Up & Live!/Singing in the Wilderness (Reader's Digest Nonfiction Bestsellers)
Kathrene Sutherland Gedney Pinkerton ,
William Seabrook ,
Richard E. Byrd ,
Rene Belbenoit ,
Arnold Bennett ,
Charles Allen Smart ,
Alexis Carrel ,
Nora Waln ,
Dorothea Brande , and
Donald Culross Peattie
Manufacturer: Reader's Digest Association
ProductGroup: Book
Binding: Hardcover
ASIN: B000JWHKDE |
Customer Reviews:
Additional Books.......2007-05-23
The other books in this volume are Four Hundred Million Customers by Carl Crow, The Return to Religion by Henry C. Link, North to the Orient by Anne Morrow Lindbergh and An American Doctor's Odyssey by Victor George Heiser.
Average customer rating:
|
A narrative of the extraordinary sufferings of Mr. Robert Forbes, his wife, and five children: During an unfortunate journey through the wilderness, from ... (Magazine of history with notes and queries)
Arthur Bradman
Manufacturer: Reprinted, W. Abbatt
ProductGroup: Book
Binding: Unknown Binding
General
| Native American
| Americas
| History
| Subjects
| Books
United States
| Americas
| History
| Subjects
| Books
| 19th Century
| 20th Century
| 21st Century
| African Americans
| Civil War
| Colonial Period
| General
| Revolution & Founding
| State & Local
ASIN: B0008AZNOA |
Average customer rating:
|
Heavy Quarks at Fixed Target (AIP Conference Proceedings / High Energy Physics)
Manufacturer: American Institute of Physics
ProductGroup: Book
Binding: Hardcover
Astronomy
| Astronomy
| Science
| Subjects
| Books
General
| Science
| Subjects
| Books
General
| Physics
| Science
| Subjects
| Books
General
| Solid-State Physics
| Physics
| Science
| Subjects
| Books
General
| Nuclear Physics
| Physics
| Science
| Subjects
| Books
Particle Physics
| Nuclear Physics
| Physics
| Science
| Subjects
| Books
General
| Medicine
| Subjects
| Books
Astronomy
| Astronomy
| Professional Science
| Professional & Technical
| Subjects
| Books
General
| Physics
| Professional Science
| Professional & Technical
| Subjects
| Books
Nuclear Physics
| Physics
| Professional Science
| Professional & Technical
| Subjects
| Books
Solid State Physics
| Physics
| Professional Science
| Professional & Technical
| Subjects
| Books
All Titles
| Qualifying Textbooks - Fall 2007
| Stores
| Books
Medicine
| Qualifying Textbooks - Fall 2007
| Stores
| Books
Professional
| Qualifying Textbooks - Fall 2007
| Stores
| Books
Science
| Qualifying Textbooks - Fall 2007
| Stores
| Books
ASIN: 1563968649 |
Book Description
This conference provided a comprehensive overview of the areas where fixed target experiments made significant contributions so that experimenters could see what work was left to be done. Since experiments at colliders contribute strongly in many of these areas, the participation of collider experimenters was welcomed and this edition of the conference contains many contributions from the collider community. In order to try to cover the huge amount of physics included in studies of heavy quarks, many of the contributions are review types, including both theoretical and experimental overviews in seven different areas: CP violation and mixing; heavy ions; production dynamics and structure functions; hadronic decays; semileptonic and leptonic decays; spectroscopy; and rare and forbidden decays. This volume is divided into these seven areas of interest.
Average customer rating:
- A woman ahead of her time.
|
Dorothy Hodgkin: A Life
Georgina Ferry
Manufacturer: Cold Spring Harbor Laboratory Press
ProductGroup: Book
Binding: Paperback
General
| Biographies & Memoirs
| Subjects
| Books
Scientists
| Professionals & Academics
| Biographies & Memoirs
| Subjects
| Books
Women
| Specific Groups
| Biographies & Memoirs
| Subjects
| Books
Crystallography
| Chemistry
| Science
| Subjects
| Books
General
| Science
| Subjects
| Books
General
| History & Philosophy
| Science
| Subjects
| Books
History of Science
| History & Philosophy
| Science
| Subjects
| Books
Look Inside Biographies
| Trip
| Specialty Stores
| Books
Similar Items:
-
Nobel Prize Women in Science: Their Lives, Struggles, and Momentous Discoveries, Second Edition
-
Max Perutz and the Secret of Life
-
J. D. Bernal: The Sage of Science
-
Rosalind Franklin : The Dark Lady of DNA
ASIN: 0879695943 |
Book Description
The first biography of the Nobel-prize winning chemist and peace activist, this book is a winning portrait of an accomplished woman who combined an ambitious career with family responsibilities, often at great cost.
Customer Reviews:
A woman ahead of her time........2003-08-10
This amazing biography of crystallographer is even more interesting because it is the author's first book. Despite being a non-scientist, Ferry does a superb job of exploring the life of her subject. It is a joy to read, treating with equal respect Dorothy Crowfoot Hodgkin's personal and scientific life. The central role of crystallography (with excursions into biology, chemistry, and physics) is not minimized, but it would be easily understandable to the non-scientific reader. Besides being a woman scientist in Great Britain at a time when women were not even eligible for college-level degrees at some schools, Dorothy was a successful wife and mother, raising several children almost alone while her husband worked in faraway places. But rather than concentrate on the difficulties, Dorothy put all her efforts into pursuing science, and thus she became fantastically successful, eventually winning the Nobel Prize for her work on the structures of Vitamin B12 and penicillin. Everyone in her field respected her, no one suggested her proper place was anywhere else, and so she avoided many of the pitfalls women in science often face. As long as she lived, Dorothy worked for what she believed in, whether it was solving the structures of complicated bio-active molecules, peace, or international communication. She built friendships all over the world, and used her fame and personality to help people. This book will make you a Dorothy Hodgkin fan, which is a tribute to both the subject's worthiness and the author's skill.
Average customer rating:
|
Birkbeck, Science and History, (Occasional Publications: New Series - Department of Geograph)
Dorothy Crowfoot Hodgkin
Manufacturer: Birkbeck
ProductGroup: Book
Binding: Hardcover
Biochemistry
| Biological Sciences
| Science
| Subjects
| Books
General
| Biology
| Biological Sciences
| Science
| Subjects
| Books
General
| Science
| Subjects
| Books
Biochemistry
| Biological Sciences
| Professional Science
| Professional & Technical
| Subjects
| Books
ASIN: 0900975083 |
Average customer rating:
|
Structural Studies on Molecules of Biological Interest: A Volume in Honour of Dorthy Hodgkin
Manufacturer: Oxford University Press, USA
ProductGroup: Book
Binding: Hardcover
Economic Policy & Development
| Economics
| Business & Investing
| Subjects
| Books
General
| Politics
| Nonfiction
| Subjects
| Books
General
| Biology
| Biological Sciences
| Science
| Subjects
| Books
Natural History
| Nature & Ecology
| Science
| Subjects
| Books
ASIN: 0198553625 |
Average customer rating:
|
Doyenne of Crystallographers.(Review): An article from: American Scientist
Linda Schmalbeck
Manufacturer: Sigma Xi, The Scientific Research Society
ProductGroup: Book
Binding: Digital
Nonfiction
| Subjects
| Books
| Automotive
| Books on CD
| Books on Cassette
| Crime & Criminals
| Current Events
| Economics
| Education
| Foreign Language Nonfiction
| Government
| Holidays
| Law
| Philosophy
| Politics
| Social Sciences
| Transportation
| True Accounts
| Urban Planning & Development
| Women's Studies
General
| Science
| Subjects
| Books
Science & Technology
| Subjects
| e-Docs
| Formats
| Books
General
| Nonfiction
| HTML
| Formats
| e-Docs
| Formats
| Books
Science
| HTML
| Formats
| e-Docs
| Formats
| Books
ASIN: B0008HNBII
Release Date: 2005-07-28 |
Average customer rating:
- Good Textbook, Limited Value Otherwise
- Indispensable books for safety and reliability engineers
- Still the best book
- Excellent text for beginning engineering probability study.
|
Probability Concepts in Engineering Planning and Design, Basic Principles (Probability Concepts in Engineering Planning & Design)
Alfredo H-S. Ang , and
Wilson H. Tang
Manufacturer: Wiley
ProductGroup: Book
Binding: Hardcover
General
| Civil
| Engineering
| Professional & Technical
| Subjects
| Books
General
| Engineering
| Professional & Technical
| Subjects
| Books
General
| Science
| Subjects
| Books
General
| Applied
| Mathematics
| Science
| Subjects
| Books
Probability & Statistics
| Applied
| Mathematics
| Science
| Subjects
| Books
General
| Mathematics
| Science
| Subjects
| Books
Civil
| Engineering
| New & Used Textbooks
| Stores
| Books
General
| Engineering
| New & Used Textbooks
| Stores
| Books
All Titles
| Qualifying Textbooks - Fall 2007
| Stores
| Books
Professional
| Qualifying Textbooks - Fall 2007
| Stores
| Books
Science
| Qualifying Textbooks - Fall 2007
| Stores
| Books
Similar Items:
-
Dynamics of Structures (3rd Edition) (Prentice-Hall International Series in Civil Engineering and Engineering Mechanics)
-
Numerical Methods for Engineers
-
Soil Mechanics in Engineering Practice
-
Mechanics of Materials, 2nd Edition
-
Fundamentals of Fluid Mechanics
ASIN: 047103200X |
Customer Reviews:
Good Textbook, Limited Value Otherwise.......2006-09-06
This is a good textbook for teaching, and not as good of a source for research for real world application reference material, which is what I try to maintain a library to utilize. Very basic material coverage, good for students.
Indispensable books for safety and reliability engineers.......2004-08-23
Alhough Ang and Tang's Volumes I and II are already over 20 years old, I consider these books as one of the best on probabilistic design methods in civil engineering. The books cover topics such as 'statistical decision analysis (including CBA, MCA, MCDM)', 'queueing models', 'extreme value theory', 'Monte Carlo simulation', 'failure probability calculation' and 'system reliability techniques'. A huge amount of examples are embedded in the theory. They are ideal to be used as examination questions (which the reviewer succesfully does for his courses on 'Probabilistic Design' and 'Probabilistic Design in Hydraulic Engineering' at TU Delft, The Netherlands).
Civil engineers with an interest in design of maritime -, hydraulic - and coastal structures will miss the probabilistic description of sea waves and current loads. The second edition (2000) of Goda may fill this gap (available at Amazon under 981023256X). Engineers interested in probabilistic description of structural dynamics are referred to the second edition (2004) of YK Lin and GQ Cai (available at Amazon under 0071438009). The connection of probability theory with finite element models (one of the reviewer's main fields of interest) is not covered by the above mentioned books. Something for Volume III...?
Still the best book.......1999-12-28
I have used this book and Vol 2 in my graduate and undergraduate courses. Having used a variety of texts for teaching and learning about probability and statistics in an engineering context, I would say the two volumes by Ang and Tang have no rivals. Lots and lots of good engineering type problems.
Excellent text for beginning engineering probability study........1999-04-05
We used this text as the first half of a graduate course in engineering reliability. It presented the concepts clearly and in terms of engineering problems rather than card picking and coin flipping like many other probability and statistics texts. It also provided a thorough treatment of the mathematical basis of the sciences of probability and statistics.
The second volume is also an excellent text, though I have had trouble locating it recently. It treats the issues of reliability and decision analysis in more detail.
Average customer rating:
|
Probability: Concepts in Engineering Planning and Design
Wilson H.; Ang, Alfredo H.S. Tang
Manufacturer: John Wiley & Sons Ltd
ProductGroup: Book
Binding: Paperback
ASIN: B000MC3QPC |
Average customer rating:
|
Solutions Manual to Accompany "Probability Concepts in Engineering Planning and Design, Volume II Decision, Risk, and Reliability", by A.H-S.Ang and W.H.Ang
Aspasia Zerva , and
Richard Bennett
Manufacturer: John Wiley & Sons Inc
ProductGroup: Book
Binding: Paperback
General
| Mechanical
| Engineering
| Professional & Technical
| Subjects
| Books
ASIN: 0471050091 |
Average customer rating:
|
Private to Pilot WW2
Thomas G. Dye
Manufacturer: Trafford Publishing
ProductGroup: Book
Binding: Paperback
General
| Biographies & Memoirs
| Subjects
| Books
General
| Historical
| Biographies & Memoirs
| Subjects
| Books
Military & Spies
| Professionals & Academics
| Biographies & Memoirs
| Subjects
| Books
General
| Military
| Leaders & Notable People
| Biographies & Memoirs
| Subjects
| Books
All Amazon Upgrade
| Amazon Upgrade
| Stores
| Books
Biographies & Memoirs
| Amazon Upgrade
| Stores
| Books
ASIN: 1412017157
Release Date: 2006-06-30 |
Product Description
A teenager at the time of Pearl Habour recounts his service experiences from infantry to first pilot of a B-25 when the war ended. From Southern California to Tokyo an uneasy step.
Average customer rating:
- courage and humility
- The best book ever
|
An American Nurse Amidst Chaos
Gladys Mouro
Manufacturer: Syracuse University Press
ProductGroup: Book
Binding: Hardcover
General
| Biographies & Memoirs
| Subjects
| Books
Medical
| Professionals & Academics
| Biographies & Memoirs
| Subjects
| Books
General
| Middle East
| History
| Subjects
| Books
ASIN: 9953901104 |
Customer Reviews:
courage and humility.......2006-11-03
This is the story of an American nurse who chose to serve the people of Lebanon. It is a fascinating account of a young woman finding herself in a Civil War and the impact that has on her own life and those around her. Reading it I felt as if I was having a conversation with the author, it is definitely her voice, and speaks with an astonishing mixture of courage and humility.
The best book ever.......2006-07-21
I received a copy of this book as a birthday gift in Aug 2005. At the time I was on vacation in San Francisco, so I didn't really start reading the book until I was on an airplane flying back to Pittsburgh (through Washington DC). What happened during my flight and layover in Dulles (6-7 hours in total) was shocking to me, as I was unable to let go of this book. I was glued to it and didn't even once yawn or take a break, simply because I couldn't. I also couldn't resist crying while reading some of the most terrible and heart-breaking stories that the author witnessed during the war in Lebanon. After reading this book, my perspective about nurses and nursing in general took a 180 degree shift, as I now appreciate and respect the vital role that nurses play in our lives.
In conclusion, I can say with confidence that so far, this is the best book that I've ever read in my 26 years of existance on this planet.
Average customer rating:
|
Doctor of nursing practice: opportunity amidst chaos.(GUEST EDITORIAL)(Editorial) : An article from: American Journal of Critical Care
Mary E. Burman ,
Ann Marie Hart , and
Susan M. McCabe
Manufacturer: Thomson Gale
ProductGroup: Book
Binding: Digital
Nonfiction
| Subjects
| Books
| Audiobooks
| Automotive
| Crime & Criminals
| Current Events
| Economics
| Education
| Foreign Language Nonfiction
| Government
| Holidays
| Law
| Philosophy
| Politics
| Social Sciences
| Transportation
| True Accounts
| Urban Planning & Development
| Women's Studies
General
| Nonfiction
| HTML
| Formats
| e-Docs
| Formats
| Books
ASIN: B000DZVCAY
Release Date: 2005-12-20 |
Average customer rating:
|
An American Nurse Amidst Chaos 1975-1998 : The Story of the American University Medical Center During the Lebanese Civil War.
Manufacturer: American University of Beirut
ProductGroup: Book
Binding: Paperback
ASIN: B000H7KXB2 |
Average customer rating:
|
An American Nurse Amidst Chaos 1975-1998: The Story of the American University Medical Center During the Lebanese Civil War
Gladys Mouro
Manufacturer: American University of Beirut
ProductGroup: Book
Binding: Hardcover
ASIN: B000VB8CBC |
Average customer rating:
|
AN AMERICAN NURSE AMIDST CHAOS, 1975-1998
Manufacturer: American University of Beirut Beirut
ProductGroup: Book
Binding: Hardcover
ASIN: B000IA3U9U |
Books:
- La Contabilidad Creativa
- Litigation Services Handbook: The Role of the Accountant As Expert
- Los Informes Comerciales
- Managerial Accounting 2nd Edition with Study Guide CD ROM and Student Survey Set
- Maximize Your Benefits: A Guide for All Employees
- Mergers & Acquisitions: Managing the Transaction
- Miller 2000 Not-For-Profit Organization Audits: Electronic Workpapers and Reference Guide (Miller Engagement Series)
- Miller Gaap Guide 1994: A Comprehensive Restatement of All Current Promulgated Generally Accepted Accounting Principles
- Miller International Accounting Standards Guide 2004 (Miller International Accounting Standards Guide)
- Miller Revenue Recognition Guide, 2003
Books Index
Books Home
Recommended Books
- Mavericks at Work: Why the Most Original Minds in Business Win
- In an Instant: A Family's Journey of Love and Healing
- Income Reconstruction: A Guide to Discovering Unreported Income
- In Nomine Superiors 1: War & Honor
- Leadership in Organizations
- Jesus Calling
- Koba the Dread: Laughter and the Twenty Million
- Control de Gestion En La Administracion Local
- Global Governance, Development, and Human Security: The Challenge of Poverty and Inequality
- Equilibrium and Efficiency in Production Economies