role of mathematical languages: a paradimatic look
TRANSCRIPT
Topic:The Mathematical language of
academic finance: a paradigmatic look
1
Presented to:Mr. Hassan Mujtaba N.Saleem
Presented by:
Shahid Amin 38
M.Adeel 23
2
IntroductionNature and role of mathematical language in financeFour paradigms
Functionalist
Interpretive
Radical Structuralist
Radical Humanist
3
Four Basic Paradigms
4
Functionalist ParadigmIt occupies the south-east quadrantLocated on the objective-subjective continuumFrom right to left:
ObjectivismSocial system theoryInteractionismSocial action theory
5
Objectivism:Is the philosophy, it holds that reality exists independent
of consciousness; that individual persons are in direct contact with reality through sensory perception.
Social system theory:a philosophical viewpoint on the relationship of person
with their social environment.It offers greater potential for description and integration
of disparate theories into a single framework that any other framework.
It provides suggestive leads For all sectors of human behavior
It has the potential to provide a common language.
6
• Interactionism TheoryA theoretical framework that imagine society as the
product of the everyday interactions of people doing things together.
To understand such interactions, emphasis is placed on studying everyday social life through life stories, observations, etc.
• Social action theorySees society as product of human activity, rather than
behavior as largely determined by societyStresses meaningfulness of human behavior
7
Functionalist ParadigmAssumptions:
Society has a concrete existence and follows a certain order
Scientific theories can be assessed objectively by reference to empirical evidence
Universal standards of science which determine what constitutes an adequate explanation of what is observed
External rules and regulations governing the external world
8
Functionalist Paradigm
Seeks to provide logical explanations of social affairs
Emphasizes the importance of understanding order, equilibrium and stability and the way these can be maintained
Natural sciences are used to generate explanations of the social world
Functionalists are individualists
9
Theories and PoliciesEfficient Market Hypothesis:
An investment theory that states it is impossible to "beat the market" because stock market efficiency causes existing share prices to always incorporate and reflect all relevant information.
According to the EMH, stocks always trade at their fair value, making it impossible for investors to either purchase undervalued stocks or sell stocks for inflated prices.
Portfolio Theory:Is a theory of investment which tries to maximize return and
minimize risk by carefully choosing different assetsInvests with the aim of selecting a collection of investment
assets that has collectively lower risk than any individual asset10
Theories and Policies(Cont’d..)Capital Asset Pricing Model:
Used to determine a theoretically appropriate required rate of return of an asset, if that asset is to be added to an already well-expanded collection, given that asset's non-increasing risk
It includes: Risk Free rate, Beta, Market Rate
Option Pricing Theory:Any model- or theory-based approach for calculating the fair
value of an option or alternativeFactors that determine the value of an option include current
stock price, the intrinsic value, time to expiration or the time value, volatility, interest rates and cash dividends paid
11
Theories and Policies(Cont’d..)Agency Theory:
A theory concerning the relationship between a principal (shareholder) and an agent of the principal (company's managers)
In this relationship the principal delegates or hires an agent to perform work
Arbitrage Pricing Theory:An asset pricing model based on the idea that an asset's
returns can be predicted using the relationship between that same asset and many common risk factors.
this theory predicts a relationship between the returns of a portfolio and the returns of a single asset through a linear combination of many independent macro-economic variables.
12
Theories and Policies(Cont’d..)Capital budgeting policy:
It is a policy in which a business determines whether projects such as building a new plant or investing in a long-term venture are worth pursuing. Oftentimes, a prospective project's lifetime cash inflows and outflows are assessed in order to determine whether the returns generated meet a sufficient target benchmark.
Also known as "investment appraisal".
Capital structure policy: it is a policy in which a company mix its long-term debt,
specific short-term debt, common equity and preferred equity. The capital structure is how a firm finances its overall operations and growth by using different sources of funds.
It is also represent the Debt-Equity ratio. 13
Theories and Policies(Cont’d..)Dividend policy:
The policy a company uses to decide how much it will pay out to shareholders in dividends.
Dividend may be: Cash dividend Stock dividend
14
Common threads among these theories
There is cause and effect mechanism underlying all nature and human activity (ontology)
Nomological connections between initial condition and final outcomes (epistemology)
Human beings interact with each other and their society in accordance with this mechanism (human nature)
Information regarding all nature and human activity can be acquired through observations and measurements unaffected by individual perceptual differences (methodology)
Functionalists’ views with respect to the nature of language and its role:
• Experience can be adequately captured in language• Proper names• Atomic sentences• Compound sentences• Meta-languages
Two linguistic levels:
Simple in form
Richer in modes of expression
Interpretive Paradigm
Occupies the Southwest quadrant.Located on the objective-subjective continuumFrom left to right they are:
SolipsismPhenomenologyPhenomenological sociologyHermeneutic
18
Solipsism: is the philosophical idea that only one's own mind is sure to
exist. The external world and other minds cannot be known and might not exist.
Solipsism is a view that can only be stated in the first person.
Phenomenology:Use of subjective data to describe an objective truthA framework for providing a qualitative understanding of
human experienceFocuses on the meaning of human experiences
(phenomenon)Researcher’s own experiences integrated into the studyFocus on finding the common thread in phenomenon It is useful when researcher wants to understand human
experience 19
Phenomenological sociology:is the study of the formal structures of concrete social
existence as made available in and through the analytical description of acts of intentional consciousness.
Hermeneutic:is the study of interpretation theory, and can be either
the art of interpretation, or the theory and practice of interpretation.
20
It sees the social world as a process which is created by individuals
There are shared multiple realities which are sustained and changed
It enables scientists to examine aggregate market behavior together with ethical, cultural, political and social issues
21
Interpretive ParadigmIt believes that:
In cultural sciences the subject matter is spiritual in nature and human beings are perceived as free
Scientific knowledge is socially constructed and socially sustained, its significance and meaning can only be understood within its immediate social context
There are no universally valid rules for finance and financial management
22
Interpretive paradigm views with respect to the nature of language:
Language gameBasic picture(simple language to complex
language) Language not fixed once and for allUse determine meaning; meaning does not
determine use
“The way of telling anything” relates to “what the thing is”
Not common to allResemblance, not identity
The Radical Humanist Paradigm
“The Radical Humanist Paradigm views language as both inhibiting the growth of human beings and as the solution to the removal of such an inhibition”
How???
Theories InvolvedSolipsism TheoryExistentialism TheoryAnarchistic IndividualismCritical Theory
Solipsism Theory
Solipsism is the philosophical idea that only one's own mind is sure to exist
Solipsism is philosophy that any knowledge outside one’s own mind is useless
Existentialism TheoryThe individual is solely responsible for giving
their own life meaning and living that life single-mindedly and sincerely despite many existential obstacles and distractions including hopelessness, anxiety, opposition, and boredom
The focus of philosophical thought should be to deal with the conditions of existence of the individual person and their emotions, actions, responsibilities, and thoughts
Anarchistic Individualism TheoryAnarchism is a political philosophy which
considers the situation undesirable, unnecessary and harmful, and as a substitute promotes a stateless society, or disorder
It seeks to diminish or even abolish authority in the conduct of human relations
Critical TheoryCritical theory is the examination and
critique of society and culture, drawing from knowledge across the social sciences and humanities
The Radical Humanist ParadigmIt assumes that reality is socially created and
sustained It tends to view society as anti-humanIt believes that everything must be grasped as a
whole, because the whole dominates the parts in all embracing sense
The consciousness of human beings is dominated by ideological superstructures of social system
The social theorist seek to change the social world through a change in consciousness
The Radical Humanist Paradigm
Radical Humanists’ Views about:
The Nature and Role of Language
Radical Humanist view links types of knowledge with Cognitive interests:
Cognitive Interests reflectHuman ExistenceHuman Experience
Human Existence Existence exhibits three main dimensions: Man’s relation with:1. Nature………………..Technical Interest2. His fellow Man………Practical Interest3. And with himself…….Emancipatory
Interest Language as speech plays role primarily in
the last two fields……………. How??
First as an instrument of Communicative interaction
Second as a medium of self knowledge and rationality
Communicative Competence
Vs
Communicative Distortion
Communicative Competence “It is an ideal speech situation”The speaker must have:Own Clearance about speechLinguistic Competence (Language Skills) Symbolic Interaction (Non Verbal)
A successful & valid speech must count as:
a) True…..as it represents something in the world
b) Truthful…as it expresses something by the speaker
c) Right….as it conforms socially recognized expectations
Functional Level Chief types of Language are:Cognitive
“Propositional Content OR obtaining knowledge through thought, Experience & Senses
Interactive “Interpersonal or Speaker-Hearer Relations”Expressive“Self Disclosure”
Communicative Distortion“it is the communication misrepresentation”
“ The speech in which the agreement, compromise or consent come through dialogue within the context of an unequal power distribution”
The Radical Structuralist Paradigm
“The Radical Structuralist Paradigm views language as being created by economic substructures”
How???
Theories InvolvedSocial Theory
Conflict Theory
Social Theory“Social theories are theoretical frameworks which are
used to study and interpret social phenomena”
Conflict Theory“Conflict theories are perspectives in social science which emphasize the social, political or material inequality of a social groupConflict theories draw attention to power differentials, such as class conflict, and generally contrast historically dominant ideologies
The Radical Structuralist Paradigm It assumes that reality is objective and
concrete. It views society as a potentially dominating force Uses scientific method to find the order that
exists in the phenomenon
This paradigm is based on four central notions:
1. Totality2. Structure3. Contradiction4. Crisis
1. Totality:It emphasizes that the whole society determines its parts
2. Structure:The focus is upon the configurations of social relationships called structures
3. Contradiction:Social formations also contain contradictory relationships which cause of decline in their standard
4. Crisis:Contradictions sometimes also cause of political and economic crisis
The Radical Structuralist ParadigmTo survive and reproduce themselves, human
beings transform reality
The Radical Structuralist Paradigmviews about:
The Nature and Role of Language
The Nature and Role of LanguageWord as Ideological sign is suitable for viewing
the whole of its relationship in basic termsIdeological sign has two faces Any current curse can become a word of praiseAny current truth must inevitably sound to
many others as the greatest lie Word has capacity to register all the short term
& delicate phases of social changeEach period and each social group has its own
speech for ideological communication
Conclusion Functionalist Paradigm views language as an
instrument for reference to sense data or systematic treatment of ideas
Interpretive Paradigm views language as being socially constructed
The Radical Humanist Paradigm views language as both inhibiting the growth of human beings and as the solution to the removal of such an inhibition
Radical Structuralists Paradigm views language as created by economic substructure
Conclusion cont’d…The knowledge of paradigms makes scientists aware of
the boundaries within which they approach their subject
The paper recommends a serious conscious thinking about the social philosophy upon which finance is based
The knowledge of finance is a product of the researcher’s paradigmatic approach to this multi-faceted phenomenon
The financial knowledge is seen as being as much an ethical, moral, ideological and political activity as it is a technical one
An understanding of different paradigms leads to a better understanding of the multi-faceted nature of finance