Ancillary services markets in europe: Evolution and regulatory trade-offs

Voyager Inn International

Darden Business Publishing Cases ◽

10.1108/case.darden.2016.000341 ◽

2017 ◽

pp. 1-10

Author(s):

Sherwood C.. Frey ◽

Dana R. Clyman

Keyword(s):

Role Play ◽

Ancillary Services ◽

Trade Offs ◽

Food And Beverage ◽

The Cost ◽

Occupancy Rates ◽

Tour Operator

Voyager Inn International (Bethesda) is negotiating a master contract with TourAmerica, an international tour operator, for hotel rooms during the 1995 tourist season. Issues under consideration include number of rooms during peak, mid-, and off-periods; room rates; breakfast prices; and the cost of ancillary services. The hotel manager is evaluated on the basis of several criteria, including adjusted daily rates, occupancy rates, and food and beverage profitability. To facilitate trade-offs among the various criteria, the manager articulates a utility scheme. This case is a role-play exercise, and must be used in conjunction with “TourAmerica” (UVA-QA-0464). Reporting forms for the evaluation of alternative contracts are provided with each case.

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Overlooked trade-offs of environmentally protective hydropower operation: Impacts to ancillary services and greenhouse gas emissions

River Research and Applications ◽

10.1002/rra.3354 ◽

2018 ◽

Vol 34 (9) ◽

pp. 1123-1131

Author(s):

Joseph Rand

Keyword(s):

Greenhouse Gas Emissions ◽

Greenhouse Gas ◽

Ancillary Services ◽

Gas Emissions ◽

Trade Offs ◽

Hydropower Operation

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TourAmerica

Darden Business Publishing Cases ◽

10.1108/case.darden.2016.000329 ◽

2017 ◽

pp. 1-10

Author(s):

Sherwood C. Frey ◽

Dana R. Clyman

Keyword(s):

Role Play ◽

Utility Functions ◽

Ancillary Services ◽

Trade Offs ◽

Food And Beverage ◽

Effective Cost ◽

The Cost ◽

Occupancy Rates ◽

Contrast Measurement

TourAmerica is negotiating a master contract with Voyager Inn International (Bethesda) for hotel rooms during the 1995 tourist season. Issues under consideration include number of rooms during peak, mid-, and off-periods, room rates, breakfast prices, and the cost of ancillary services. While the hotel manager is evaluated on the basis of several criteria, including adjusted daily rates, occupancy rates, and food and beverage profitability, and is also provided with a utility scheme to facilitate trade-offs among the criteria, TourAmerica uses an effective cost per registrant (adjusted for intangibles). These two approaches provide an opportunity to contrast measurement schemes and to justify the use of utility functions. This case is a role-play exercise and must be used in conjunction with "Voyager Inn International" (UVA-QA-0463).

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Novel players fine-tune plant trade-offs

Essays in Biochemistry ◽

10.1042/bse0580083 ◽

2015 ◽

Vol 58 ◽

pp. 83-100 ◽

Cited By ~ 25

Author(s):

Selena Gimenez-Ibanez ◽

Marta Boter ◽

Roberto Solano

Keyword(s):

Ubiquitin Ligase ◽

Feedback Loop ◽

Molecular Level ◽

26S Proteasome ◽

Signalling Molecules ◽

Transcriptional Reprogramming ◽

Trade Offs ◽

Jaz Proteins ◽

Regulatory Feedback Loop ◽

Fine Tune

Jasmonates (JAs) are essential signalling molecules that co-ordinate the plant response to biotic and abiotic challenges, as well as co-ordinating several developmental processes. Huge progress has been made over the last decade in understanding the components and mechanisms that govern JA perception and signalling. The bioactive form of the hormone, (+)-7-iso-jasmonyl-l-isoleucine (JA-Ile), is perceived by the COI1–JAZ co-receptor complex. JASMONATE ZIM DOMAIN (JAZ) proteins also act as direct repressors of transcriptional activators such as MYC2. In the emerging picture of JA-Ile perception and signalling, COI1 operates as an E3 ubiquitin ligase that upon binding of JA-Ile targets JAZ repressors for degradation by the 26S proteasome, thereby derepressing transcription factors such as MYC2, which in turn activate JA-Ile-dependent transcriptional reprogramming. It is noteworthy that MYCs and different spliced variants of the JAZ proteins are involved in a negative regulatory feedback loop, which suggests a model that rapidly turns the transcriptional JA-Ile responses on and off and thereby avoids a detrimental overactivation of the pathway. This chapter highlights the most recent advances in our understanding of JA-Ile signalling, focusing on the latest repertoire of new targets of JAZ proteins to control different sets of JA-Ile-mediated responses, novel mechanisms of negative regulation of JA-Ile signalling, and hormonal cross-talk at the molecular level that ultimately determines plant adaptability and survival.

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Dual Goals for Speed and Accuracy on the Same Performance Task

Journal of Personnel Psychology ◽

10.1027/1866-5888/a000063 ◽

2012 ◽

Vol 11 (3) ◽

pp. 118-126 ◽

Cited By ~ 3

Author(s):

Olive Emil Wetter ◽

Jürgen Wegge ◽

Klaus Jonas ◽

Klaus-Helmut Schmidt

Keyword(s):

Memory Scanning ◽

Performance Task ◽

Performance Tasks ◽

Trade Off ◽

Test Experiment ◽

Trade Offs ◽

New Finding ◽

Sternberg Paradigm ◽

Speed Accuracy ◽

Speed And Accuracy

In most work contexts, several performance goals coexist, and conflicts between them and trade-offs can occur. Our paper is the first to contrast a dual goal for speed and accuracy with a single goal for speed on the same task. The Sternberg paradigm (Experiment 1, n = 57) and the d2 test (Experiment 2, n = 19) were used as performance tasks. Speed measures and errors revealed in both experiments that dual as well as single goals increase performance by enhancing memory scanning. However, the single speed goal triggered a speed-accuracy trade-off, favoring speed over accuracy, whereas this was not the case with the dual goal. In difficult trials, dual goals slowed down scanning processes again so that errors could be prevented. This new finding is particularly relevant for security domains, where both aspects have to be managed simultaneously.

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