Coordination of Long-Term, Short-Term Supply Contract and Capacity Investment Strategy

2013 ◽  
pp. 801-807
Author(s):  
Chiao Fu ◽  
Cheng-Hung Wu
Keyword(s):  
Investment Strategy ◽  
Capacity Investment ◽  
Short Term ◽  
Supply Contract

An analytical approach for behavioral portfolio model with time discounting preference

2018 ◽  
Vol 52 (3) ◽  
pp. 691-712
Author(s):  
Guang Yang ◽  
Xinwang Liu ◽  
Jindong Qin ◽  
Ahmed Khan
Keyword(s):  
Portfolio Selection ◽  
Investment Strategy ◽  
Cumulative Prospect Theory ◽  
Investment Strategies ◽  
Short Term ◽  
Time Discounting ◽  
Present Bias ◽  
Proposed Model ◽  
Portfolio Selection Model

This paper presents a behavioral portfolio selection model with time discounting preference. Firstly, we discuss the portfolio selection problem and then modify this model based on cumulative prospect theory (CPT) as well as considering investors’ time discounting preference in psychology. Furthermore, an analytical solution with satisfying behavior is given for our proposed model, the results show that when investors’ goals are very ambitious, they put a high proportion of their wealth in long-term goals and adopt aggressive investment strategies with high leverage to reach short-term goals and the overall investment strategy also displays high leverage. Finally, numerical analysis is given and it is shown that investor who tends to future bias performs adequate confidence and patience whereas investor with present bias is apt to the immediate interests.

scholarly journals Trend identification with the relative strength index (RSI) technical indicator –A conceptual study

2021 ◽  
Vol 8 (4) ◽  
pp. 159-169
Author(s):  
Ashok Kumar Panigrahi ◽  
Kushal Vachhani ◽  
Suman Kalyan Chaudhury
Keyword(s):  
Investment Strategy ◽  
Relative Strength ◽  
Medium Term ◽  
Short Term ◽  
Significance Level ◽  
Technical Indicator ◽  
Conceptual Study ◽  
Trend Identification ◽  
F Statistics

We all must agree that the word "trend" is now the buzzword of the stock market. As a part of investment strategy and analysis, it is always suggested that the investors should keep an eye on medium-term and short-term changes in addition to longer-term (secular) patterns. Traders and investors use the RSI as a momentum indicator. Overbought and oversold situations are indicated by RSI values between 70 and 30. Over the past two decades, several techniques have been developed to analyze NIFTY 50 data for investment purposes. In this paper, we have estimated the returns by looking at the two trends i.e., 50-50 and 60-40. In addition to this, how to trade and back-test our strategy is also explained. Applying these two RSI strategies to the NIFTY 50 chart revealed that 50-50 offers a higher long-term return, while 60-40 provides a superior short-term return. Finally, the strategies' returns F-statistics and P-values were calculated and analyzed to determine their significance level and acceptability.

scholarly journals The Equity Curve and Its Relation to Future Stock Returns

2020 ◽  
Vol 13 (2) ◽  
pp. 19
Author(s):  
Olaf Stotz
Keyword(s):  
Stock Returns ◽  
Term Structure ◽  
Investment Strategy ◽  
Absolute Difference ◽  
Option Prices ◽  
Positive Slope ◽  
Short Term ◽  
Theoretical Predictions ◽  
Expected Stock Returns

Using option prices, a new method for estimating the term structure of expected stock returns (equity curve) is proposed. We analyse how the equity curve relates to future stock returns and obtain three main results. First, a higher level of the equity curve is associated with higher future stock returns. Second, a positive slope is followed by future realized returns which are lower in the short term (1 month) than in the long term (1 quarter or 1 year). Third, a steeper slope (either positive or negative) is associated with a larger absolute difference between short-term and long-term returns. Therefore, the equity curve is consistent with theoretical predictions. We also analyse an investment strategy that uses the slope of the equity curve to determine the allocation to stocks. This strategy earns an outperformance of up to 200 basis points per annum.

Is This the End of the ‘Long Term’ for Pensions Actuaries?. A Discussion Meeting

2006 ◽  
Vol 12 (1) ◽  
pp. 63-78
Keyword(s):  
Investment Strategy ◽  
Pension Scheme ◽  
Investment Strategies ◽  
Short Term ◽  
Retirement Benefits ◽  
The Government ◽  
To Come ◽  
Legislative Changes ◽  
Funding Environment

INTRODUCTIONThe Profession claims to make financial sense of the future, and our particular angle is our purported ability to see past the whims of the short termists and keep an unwavering eye on the long term. The pensions arena has been no different … until now?In June 2003, the Government converted defined retirement benefits unambiguously from an arguably vague promise to a debt, behind which the sponsor has to stand. A series of subsequent legislative changes, including the introduction of Scheme Specific Funding and of the Pension Protection Fund (PPF), with its proposed risk-based levies, has forced trustees to take a more commercial view to make sure that accrued benefits are met.This stands in contrast to the gentler ‘funding’ environment in which pension schemes and Scheme Actuaries had become used to working. In that environment, the actuarial ‘long term’ justified many of the decisions taken in funding schemes — the long-term focus drove investment strategy and the approach to setting or agreeing contribution rates.Has the rationale for the ‘long term’ disappeared: now that some of the discussion about funding has included talk of deficit correction periods of less than five years; now that accounting standards put any investment and actuarial volatility in the pension scheme into the sponsor's accounts every year; and now that PPF levies will change from year to year as funding levels and sponsor covenants change?Has the Actuarial Profession over-reacted in focusing on the short term, or has it under-reacted? Will investment strategies look very different in years to come? Will valuations and funding advice take on a different shape?

Conceptual short-term memory (CSTM) supports core claims of Christiansen and Chater

2016 ◽  
Vol 39 ◽  
Author(s):  
Mary C. Potter
Keyword(s):  
Working Memory ◽  
Rapid Serial Visual Presentation ◽  
Language Comprehension ◽  
Short Term Memory ◽  
Visual Presentation ◽  
Long Term Memory ◽  
Short Term ◽  
Term Memory ◽  
Use Of Knowledge

AbstractRapid serial visual presentation (RSVP) of words or pictured scenes provides evidence for a large-capacity conceptual short-term memory (CSTM) that momentarily provides rich associated material from long-term memory, permitting rapid chunking (Potter 1993; 2009; 2012). In perception of scenes as well as language comprehension, we make use of knowledge that briefly exceeds the supposed limits of working memory.

Ultrastructural investigations of MDL 19,660-induced effects on the canine platelet and megakaryocyte

1990 ◽  
Vol 48 (3) ◽  
pp. 374-375
Author(s):  
D.E. Loudy ◽  
J. Sprinkle-Cavallo ◽  
J.T. Yarrington ◽  
F.Y. Thompson ◽  
J.P. Gibson
Keyword(s):  
Antidepressant Drug ◽  
Beagle Dogs ◽  
Long Term Effects ◽  
Short Term ◽  
Platelet Counts ◽  
Toxicological Studies ◽  
Induced Aggregation ◽  
Internal Architecture

Previous short term toxicological studies of one to two weeks duration have demonstrated that MDL 19,660 (5-(4-chlorophenyl)-2,4-dihydro-2,4-dimethyl-3Hl, 2,4-triazole-3-thione), an antidepressant drug, causes a dose-related thrombocytopenia in dogs. Platelet counts started to decline after two days of dosing with 30 mg/kg/day and continued to decrease to their lowest levels by 5-7 days. The loss in platelets was primarily of the small discoid subpopulation. In vitro studies have also indicated that MDL 19,660: does not spontaneously aggregate canine platelets and has moderate antiaggregating properties by inhibiting ADP-induced aggregation. The objectives of the present investigation of MDL 19,660 were to evaluate ultrastructurally long term effects on platelet internal architecture and changes in subpopulations of platelets and megakaryocytes.Nine male and nine female beagle dogs were divided equally into three groups and were administered orally 0, 15, or 30 mg/kg/day of MDL 19,660 for three months. Compared to a control platelet range of 353,000- 452,000/μl, a doserelated thrombocytopenia reached a maximum severity of an average of 135,000/μl for the 15 mg/kg/day dogs after two weeks and 81,000/μl for the 30 mg/kg/day dogs after one week.

Comparison of Auditory, Language, Memory, and Attention Abilities in Children With and Without Listening Difficulties

2020 ◽  
Vol 29 (4) ◽  
pp. 710-727
Author(s):  
Beula M. Magimairaj ◽  
Naveen K. Nagaraj ◽  
Alexander V. Sergeev ◽  
Natalie J. Benafield
Keyword(s):  
Auditory Processing ◽  
Short Term Memory ◽  
Group Differences ◽  
Long Term Memory ◽  
Short Term ◽  
Significant Group ◽  
Term Memory ◽  
Memory And Attention ◽  
Speed And Accuracy

Objectives School-age children with and without parent-reported listening difficulties (LiD) were compared on auditory processing, language, memory, and attention abilities. The objective was to extend what is known so far in the literature about children with LiD by using multiple measures and selective novel measures across the above areas. Design Twenty-six children who were reported by their parents as having LiD and 26 age-matched typically developing children completed clinical tests of auditory processing and multiple measures of language, attention, and memory. All children had normal-range pure-tone hearing thresholds bilaterally. Group differences were examined. Results In addition to significantly poorer speech-perception-in-noise scores, children with LiD had reduced speed and accuracy of word retrieval from long-term memory, poorer short-term memory, sentence recall, and inferencing ability. Statistically significant group differences were of moderate effect size; however, standard test scores of children with LiD were not clinically poor. No statistically significant group differences were observed in attention, working memory capacity, vocabulary, and nonverbal IQ. Conclusions Mild signal-to-noise ratio loss, as reflected by the group mean of children with LiD, supported the children's functional listening problems. In addition, children's relative weakness in select areas of language performance, short-term memory, and long-term memory lexical retrieval speed and accuracy added to previous research on evidence-based areas that need to be evaluated in children with LiD who almost always have heterogenous profiles. Importantly, the functional difficulties faced by children with LiD in relation to their test results indicated, to some extent, that commonly used assessments may not be adequately capturing the children's listening challenges. Supplemental Material https://doi.org/10.23641/asha.12808607

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