Energy trading and risk management: a practical approach to hedging, trading and portfolio diversification
Gespeichert in:
1. Verfasser: | |
---|---|
Format: | Buch |
Sprache: | English |
Veröffentlicht: |
Singapore
Wiley
2014
|
Schlagworte: | |
Online-Zugang: | Inhaltsverzeichnis |
Beschreibung: | Includes bibliographical references and index |
Beschreibung: | xxix, 264 S. graph. Darst. |
ISBN: | 1118339339 9781118339336 |
Internformat
MARC
LEADER | 00000nam a2200000zc 4500 | ||
---|---|---|---|
001 | BV042121808 | ||
003 | DE-604 | ||
005 | 20181112 | ||
007 | t | ||
008 | 141016s2014 d||| |||| 00||| eng d | ||
020 | |a 1118339339 |c hbk. |9 1-118-33933-9 | ||
020 | |a 9781118339336 |c hbk. |9 978-1-118-33933-6 | ||
035 | |a (OCoLC)885386268 | ||
035 | |a (DE-599)BVBBV042121808 | ||
040 | |a DE-604 |b ger |e aacr | ||
041 | 0 | |a eng | |
049 | |a DE-355 |a DE-384 | ||
082 | 0 | |a 332.644 |2 22 | |
084 | |a QR 530 |0 (DE-625)142050: |2 rvk | ||
084 | |a SK 980 |0 (DE-625)143277: |2 rvk | ||
100 | 1 | |a Mack, Iris Marie |e Verfasser |4 aut | |
245 | 1 | 0 | |a Energy trading and risk management |b a practical approach to hedging, trading and portfolio diversification |c Iris Mack |
264 | 1 | |a Singapore |b Wiley |c 2014 | |
300 | |a xxix, 264 S. |b graph. Darst. | ||
336 | |b txt |2 rdacontent | ||
337 | |b n |2 rdamedia | ||
338 | |b nc |2 rdacarrier | ||
500 | |a Includes bibliographical references and index | ||
650 | 7 | |a BUSINESS & ECONOMICS / Finance |2 bisacsh | |
650 | 4 | |a Wirtschaft | |
650 | 4 | |a Commodity exchanges | |
650 | 4 | |a Energy industries / Risk management | |
650 | 4 | |a Hedging (Finance) | |
650 | 4 | |a Portfolio management | |
650 | 0 | 7 | |a Hedging |0 (DE-588)4123357-8 |2 gnd |9 rswk-swf |
650 | 0 | 7 | |a Portfolio Selection |0 (DE-588)4046834-3 |2 gnd |9 rswk-swf |
650 | 0 | 7 | |a Risikomanagement |0 (DE-588)4121590-4 |2 gnd |9 rswk-swf |
650 | 0 | 7 | |a Energiemarkt |0 (DE-588)4014712-5 |2 gnd |9 rswk-swf |
653 | |a Electronic books | ||
689 | 0 | 0 | |a Energiemarkt |0 (DE-588)4014712-5 |D s |
689 | 0 | 1 | |a Risikomanagement |0 (DE-588)4121590-4 |D s |
689 | 0 | 2 | |a Hedging |0 (DE-588)4123357-8 |D s |
689 | 0 | 3 | |a Portfolio Selection |0 (DE-588)4046834-3 |D s |
689 | 0 | |C b |5 DE-604 | |
776 | 0 | 8 | |i Erscheint auch als |n Online-Ausgabe |z 1-118-63828-X |
776 | 0 | 8 | |i Erscheint auch als |n Online-Ausgabe |z 978-1-118-63828-6 |
776 | 0 | 8 | |i Erscheint auch als |n Online-Ausgabe, PDF |z 1-118-33936-3 |
776 | 0 | 8 | |i Erscheint auch als |n Online-Ausgabe, PDF |z 978-1-118-33936-7 |
856 | 4 | 2 | |m Digitalisierung UB Regensburg - ADAM Catalogue Enrichment |q application/pdf |u http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=027562020&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |3 Inhaltsverzeichnis |
999 | |a oai:aleph.bib-bvb.de:BVB01-027562020 |
Datensatz im Suchindex
_version_ | 1804152598253535232 |
---|---|
adam_text | Prefica
m
Acknowledgments
xxv
Atout
die Author
xxvi
Atout
the Contributors
xxix
СНАРТВП
tJMTfy NofwetS
пММИШЅ
1
1.1
Physical Forward and Futures Markets
3
1.2
Spot Marker
5
1.3
Intraday Market
10
1.4
Balancing and Reserve Market
10
1.5
Congestion Revenue Rights, Financial Transmission
Rights, and Transmission Congestion Contracts
11
1.6
Chapter Wrap-Up
12
References
13
OMPTBI2
2.1
Spot Prices
17
2.1.1
Random Walk Jump-Diffusion Model
19
2.1.2
Mean Reversion: Ornstein-Uhienbeck Process
23
2.1.3
Mean Reversion: Schwartz Type
1
Stochastic Process
25
2.1.4
Mean Reversion with Jumps
25
2.1.5
Two-Factor Model
26
2.1.6
Negative Prices
27
2.2
Forward Prices
28
2.2.1
Forward and Futures Markets
28
2.2.2
Contango and Backwardation
30
2.3
Chapter Wrap-Up
31
References
31
VIH
CONTENTS
CHAPTER
3
Plain Vanilla Energy Derivatives
33
3.1
Definition of Energy Derivatives
34
3.2
Global Commodity Exchanges
35
3.3
Energy Derivatives Pricing Models
36
3.4
Settlement
37
3.5
Energy Derivatives Quant Models: Role and Limitations
38
3.6
Options
40
3.6.1
Volatility
42
3.7
Vanilla Options
43
3.7.1
Option Style
44
3.7.2
Exchange-Traded and Over-the-Counter Options
44
3.7.3
In-the-Money, At-the-Money, and
Out-of-the-Money Options
45
3.7.4
Put-Call Parity
46
3.8
European Options
47
3.9
American Options
50
3.10
Swaps
52
3.11
Swaps to Futures
54
3.12
Chapter Wrap-Up
54
References
54
CHAPTER
4
Exotic Energy Derivatives
59
4.1
Asian Options
60
4.1.1
Classes of Asian Options
61
4.1.2
Payoffs of Asian Options
62
4.1.3
Solutions to Asian Options
63
4.1.4
Asian Options in the Energy Markets
63
4.2
Barrier Options
63
4.2.1
Eight Types of Barrier Options
64
4.2.2
Partial Barrier Options
65
4.2.3
Solutions to Barrier Options
66
4.2.4
Barrier Options in the Energy Markets
66
4.3
Digital Options
66
4.3.1
Types of Digital Options
67
4.3.2
Solutions to Digital Options
69
4.3.3
Digital Options in the Energy Markets
69
4.4
Real Options
71
4.4.1
Real Options in the Electric Power Markets
71
4.4.2
Case Study: Real Options in the Oil Markets
72
Contents
ЇХ
4.4.3
Limitations
of the Real Options
Valuation Paradigm
73
4.5
Multiasset Options
74
4.5.1
Pricing Multiasset Options
74
4.6
Spread Options
75
4.6.1
Crack Spreads
76
4.6.2
Spark Spreads
82
4.6.3
Dark Spreads
85
4.7
Perpetual American Options
86
4.7.1
Perpetual American Options in the
Power Industry
87
4.8
Compound Options
87
4.8.1
Tolling Agreements: Example of Compound
Options in Power Markets
89
4.9
Swaptions
90
4.9.1
Energy Swaptions
9
1
4.10
Swing Options
92
4.11
Chapter Wrap-Up
94
References
94
CHAPTER
5
Risk Management and Hedging Strategies
SS
5.1
Introduction to Hedging
102
5.2
Price Risk
104
5.3
Basis Risk
107
5.3.1
Basis Risk Case Study
108
5.3.2
Metallgesellchaft Case: Stack and
Roll Hedging Disaster
109
5.4
The Option Greeks
110
5.5
Delta Hedging 111
5.6
Gamma Hedging
113
5.7 Vega
Hedging
115
5.8
Cross-Hedging Greeks
116
5.9
Quant Models Used to Manage Energy Risk:
Role and Limitations
116
5.9.1
Regression Analysis
117
5.9.2
Stress Test
120
5.9.3
Value at Risk
123
5.10
Chapter Wrap-Up
124
References
124
CONTENTS
СНАРТШ6
Illustrations of Hedging with Energy Derivatives
127
6.1
Hedging with Futures Contracts
129
6.1.1
Case Studies and Examples: Hedging with
Futures Contracts
130
6.1.2
Risks Associated with Hedging with
Futures Contracts
138
6.2
Hedging with Forward Contracts
141
6.3
Hedging with Options
143
6.3.1
Case Study: Call Options Used to Set a
Cap on Gasoline Prices
143
6.3.2
Example: How Power Generators Use
Options on Futures to Hedge
144
6.3.3
Example: How End Users Utilize Options
on Futures to Hedge
145
6.3.4
Example: How Power Marketers Use
Options on Futures to Hedge
145
6.4
Hedging with Swaps
146
6.4.1
Example: Fuel Swap
148
6.4.2
Example: Electricity Swap
149
6.4.3
Case Study: Natural Gas Basis Swap
150
6.5
Hedging with Crack Spread Options
151
6.5.1
Case Study: Hedging with Crack Spread Options
153
6.6
Hedging with Spark Spreads
154
6.6.1
Case Study: Power Producer Uses Spark
Spread to Protect Margin
154
6.7
Hedging with Other Energy Derivatives
157
6.8
Chapter Wrap-Up
158
References
158
CHAPTER
7
Speculation
161
7.1
Convergence of Energy and Financial Markets
162
7.2
Trading Terminology
167
7.3
Energy Products Trading Codes
169
7.4
Futures Trading Symbols:
Month Code Abbreviation
170
7.5
Fundamental and Technical Analyses
171
7.6
Trading Tools: Charts and Quotes
173
7.7
Energy Trading Market Participants
176
7.8
Speculation in the Oil Markets
182
7.9
Speculation in the Electricity Markets
184
Contents Xi
7.10
Speculation in the Natural Gas Markets
185
7.11
Chapter Wrap-Up
18 7
References
187
CHAPTER
8
Energy Portfolios
191
8.1
Modern Portfolio Theory
192
8.2
Energy Portfolio Management
196
8.3
Optimization of Electricity Portfolios
197
8.3
Λ
Case Study: Economic Load Dispatch of a
Portfolio of Gas-fired Power Plants
199
8.4
Optimization of Gas Portfolios
201
8.5
Other Energy Portfolio Management Models
203
8.6
Chapter Wrap-Up
203
References
204
CHAPTER
8
Hedging Nonlinear Payoffs Using Options:
The Case of a New Subsidies Regime for Renewables
207
9.1
Renewable Energy, Options Pricing, and
Government Subsidies
209
9.1.1
Power Assets Modeled as a
Vanilla Call Option
210
9.1.2
Strike Price of a Wind Turbine
211
9.1.3
Levelized Cost Price of Electricity
211
9.1.4
Wind Turbines Competitiveness
on the Electricity Market
213
9.2
Government Subsidies as a Stochastic Process
216
9.3
Impact of Embedded Options and Stochastic
Subsidies on Pricing and Risk Management
219
9.3.1
Pricing of a Wind Turbine and Subsidies
as an Embedded Option
219
9.3.2
Tail Risk and Hedging Options with Options
222
9.4
Chapter Wrap-Up
224
References
225
СНАРТШ10
Case Study: Hydro Power Generation and Behavioral
Finance in the U.S. Pacific Northwest
227
10.1
An Overview of Behavioral Finance
229
10.2
Behavioral Finance in Energy Economics
231
10.3
Power Generation in the Pacific Northwest
232
ХИ
___________________________________________________________________________
CONTENTS
10.4
Behavioral Financing of Projects in
the Pacific Northwest
235
10.5
Northwest
Po wer
Planning
239
10.5.1
Resource Availability
239
10.5.2
Resource Cost
239
10.5.3
System Flexibility
240
10.5.4
Cost Effectiveness
241
10.5.5
Transmission
241
10.6
Chapter Wrap-Up
241
Reference
242
Bibliography
243
Index
259
|
any_adam_object | 1 |
author | Mack, Iris Marie |
author_facet | Mack, Iris Marie |
author_role | aut |
author_sort | Mack, Iris Marie |
author_variant | i m m im imm |
building | Verbundindex |
bvnumber | BV042121808 |
classification_rvk | QR 530 SK 980 |
ctrlnum | (OCoLC)885386268 (DE-599)BVBBV042121808 |
dewey-full | 332.644 |
dewey-hundreds | 300 - Social sciences |
dewey-ones | 332 - Financial economics |
dewey-raw | 332.644 |
dewey-search | 332.644 |
dewey-sort | 3332.644 |
dewey-tens | 330 - Economics |
discipline | Mathematik Wirtschaftswissenschaften |
format | Book |
fullrecord | <?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>02350nam a2200565zc 4500</leader><controlfield tag="001">BV042121808</controlfield><controlfield tag="003">DE-604</controlfield><controlfield tag="005">20181112 </controlfield><controlfield tag="007">t</controlfield><controlfield tag="008">141016s2014 d||| |||| 00||| eng d</controlfield><datafield tag="020" ind1=" " ind2=" "><subfield code="a">1118339339</subfield><subfield code="c">hbk.</subfield><subfield code="9">1-118-33933-9</subfield></datafield><datafield tag="020" ind1=" " ind2=" "><subfield code="a">9781118339336</subfield><subfield code="c">hbk.</subfield><subfield code="9">978-1-118-33933-6</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(OCoLC)885386268</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-599)BVBBV042121808</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-604</subfield><subfield code="b">ger</subfield><subfield code="e">aacr</subfield></datafield><datafield tag="041" ind1="0" ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="049" ind1=" " ind2=" "><subfield code="a">DE-355</subfield><subfield code="a">DE-384</subfield></datafield><datafield tag="082" ind1="0" ind2=" "><subfield code="a">332.644</subfield><subfield code="2">22</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">QR 530</subfield><subfield code="0">(DE-625)142050:</subfield><subfield code="2">rvk</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">SK 980</subfield><subfield code="0">(DE-625)143277:</subfield><subfield code="2">rvk</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Mack, Iris Marie</subfield><subfield code="e">Verfasser</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Energy trading and risk management</subfield><subfield code="b">a practical approach to hedging, trading and portfolio diversification</subfield><subfield code="c">Iris Mack</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="a">Singapore</subfield><subfield code="b">Wiley</subfield><subfield code="c">2014</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="a">xxix, 264 S.</subfield><subfield code="b">graph. Darst.</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="b">n</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="b">nc</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="500" ind1=" " ind2=" "><subfield code="a">Includes bibliographical references and index</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">BUSINESS & ECONOMICS / Finance</subfield><subfield code="2">bisacsh</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Wirtschaft</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Commodity exchanges</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Energy industries / Risk management</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Hedging (Finance)</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Portfolio management</subfield></datafield><datafield tag="650" ind1="0" ind2="7"><subfield code="a">Hedging</subfield><subfield code="0">(DE-588)4123357-8</subfield><subfield code="2">gnd</subfield><subfield code="9">rswk-swf</subfield></datafield><datafield tag="650" ind1="0" ind2="7"><subfield code="a">Portfolio Selection</subfield><subfield code="0">(DE-588)4046834-3</subfield><subfield code="2">gnd</subfield><subfield code="9">rswk-swf</subfield></datafield><datafield tag="650" ind1="0" ind2="7"><subfield code="a">Risikomanagement</subfield><subfield code="0">(DE-588)4121590-4</subfield><subfield code="2">gnd</subfield><subfield code="9">rswk-swf</subfield></datafield><datafield tag="650" ind1="0" ind2="7"><subfield code="a">Energiemarkt</subfield><subfield code="0">(DE-588)4014712-5</subfield><subfield code="2">gnd</subfield><subfield code="9">rswk-swf</subfield></datafield><datafield tag="653" ind1=" " ind2=" "><subfield code="a">Electronic books</subfield></datafield><datafield tag="689" ind1="0" ind2="0"><subfield code="a">Energiemarkt</subfield><subfield code="0">(DE-588)4014712-5</subfield><subfield code="D">s</subfield></datafield><datafield tag="689" ind1="0" ind2="1"><subfield code="a">Risikomanagement</subfield><subfield code="0">(DE-588)4121590-4</subfield><subfield code="D">s</subfield></datafield><datafield tag="689" ind1="0" ind2="2"><subfield code="a">Hedging</subfield><subfield code="0">(DE-588)4123357-8</subfield><subfield code="D">s</subfield></datafield><datafield tag="689" ind1="0" ind2="3"><subfield code="a">Portfolio Selection</subfield><subfield code="0">(DE-588)4046834-3</subfield><subfield code="D">s</subfield></datafield><datafield tag="689" ind1="0" ind2=" "><subfield code="C">b</subfield><subfield code="5">DE-604</subfield></datafield><datafield tag="776" ind1="0" ind2="8"><subfield code="i">Erscheint auch als</subfield><subfield code="n">Online-Ausgabe</subfield><subfield code="z">1-118-63828-X</subfield></datafield><datafield tag="776" ind1="0" ind2="8"><subfield code="i">Erscheint auch als</subfield><subfield code="n">Online-Ausgabe</subfield><subfield code="z">978-1-118-63828-6</subfield></datafield><datafield tag="776" ind1="0" ind2="8"><subfield code="i">Erscheint auch als</subfield><subfield code="n">Online-Ausgabe, PDF</subfield><subfield code="z">1-118-33936-3</subfield></datafield><datafield tag="776" ind1="0" ind2="8"><subfield code="i">Erscheint auch als</subfield><subfield code="n">Online-Ausgabe, PDF</subfield><subfield code="z">978-1-118-33936-7</subfield></datafield><datafield tag="856" ind1="4" ind2="2"><subfield code="m">Digitalisierung UB Regensburg - ADAM Catalogue Enrichment</subfield><subfield code="q">application/pdf</subfield><subfield code="u">http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=027562020&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA</subfield><subfield code="3">Inhaltsverzeichnis</subfield></datafield><datafield tag="999" ind1=" " ind2=" "><subfield code="a">oai:aleph.bib-bvb.de:BVB01-027562020</subfield></datafield></record></collection> |
id | DE-604.BV042121808 |
illustrated | Illustrated |
indexdate | 2024-07-10T01:13:15Z |
institution | BVB |
isbn | 1118339339 9781118339336 |
language | English |
oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-027562020 |
oclc_num | 885386268 |
open_access_boolean | |
owner | DE-355 DE-BY-UBR DE-384 |
owner_facet | DE-355 DE-BY-UBR DE-384 |
physical | xxix, 264 S. graph. Darst. |
publishDate | 2014 |
publishDateSearch | 2014 |
publishDateSort | 2014 |
publisher | Wiley |
record_format | marc |
spelling | Mack, Iris Marie Verfasser aut Energy trading and risk management a practical approach to hedging, trading and portfolio diversification Iris Mack Singapore Wiley 2014 xxix, 264 S. graph. Darst. txt rdacontent n rdamedia nc rdacarrier Includes bibliographical references and index BUSINESS & ECONOMICS / Finance bisacsh Wirtschaft Commodity exchanges Energy industries / Risk management Hedging (Finance) Portfolio management Hedging (DE-588)4123357-8 gnd rswk-swf Portfolio Selection (DE-588)4046834-3 gnd rswk-swf Risikomanagement (DE-588)4121590-4 gnd rswk-swf Energiemarkt (DE-588)4014712-5 gnd rswk-swf Electronic books Energiemarkt (DE-588)4014712-5 s Risikomanagement (DE-588)4121590-4 s Hedging (DE-588)4123357-8 s Portfolio Selection (DE-588)4046834-3 s b DE-604 Erscheint auch als Online-Ausgabe 1-118-63828-X Erscheint auch als Online-Ausgabe 978-1-118-63828-6 Erscheint auch als Online-Ausgabe, PDF 1-118-33936-3 Erscheint auch als Online-Ausgabe, PDF 978-1-118-33936-7 Digitalisierung UB Regensburg - ADAM Catalogue Enrichment application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=027562020&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
spellingShingle | Mack, Iris Marie Energy trading and risk management a practical approach to hedging, trading and portfolio diversification BUSINESS & ECONOMICS / Finance bisacsh Wirtschaft Commodity exchanges Energy industries / Risk management Hedging (Finance) Portfolio management Hedging (DE-588)4123357-8 gnd Portfolio Selection (DE-588)4046834-3 gnd Risikomanagement (DE-588)4121590-4 gnd Energiemarkt (DE-588)4014712-5 gnd |
subject_GND | (DE-588)4123357-8 (DE-588)4046834-3 (DE-588)4121590-4 (DE-588)4014712-5 |
title | Energy trading and risk management a practical approach to hedging, trading and portfolio diversification |
title_auth | Energy trading and risk management a practical approach to hedging, trading and portfolio diversification |
title_exact_search | Energy trading and risk management a practical approach to hedging, trading and portfolio diversification |
title_full | Energy trading and risk management a practical approach to hedging, trading and portfolio diversification Iris Mack |
title_fullStr | Energy trading and risk management a practical approach to hedging, trading and portfolio diversification Iris Mack |
title_full_unstemmed | Energy trading and risk management a practical approach to hedging, trading and portfolio diversification Iris Mack |
title_short | Energy trading and risk management |
title_sort | energy trading and risk management a practical approach to hedging trading and portfolio diversification |
title_sub | a practical approach to hedging, trading and portfolio diversification |
topic | BUSINESS & ECONOMICS / Finance bisacsh Wirtschaft Commodity exchanges Energy industries / Risk management Hedging (Finance) Portfolio management Hedging (DE-588)4123357-8 gnd Portfolio Selection (DE-588)4046834-3 gnd Risikomanagement (DE-588)4121590-4 gnd Energiemarkt (DE-588)4014712-5 gnd |
topic_facet | BUSINESS & ECONOMICS / Finance Wirtschaft Commodity exchanges Energy industries / Risk management Hedging (Finance) Portfolio management Hedging Portfolio Selection Risikomanagement Energiemarkt |
url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=027562020&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
work_keys_str_mv | AT mackirismarie energytradingandriskmanagementapracticalapproachtohedgingtradingandportfoliodiversification |