The Big Mo ("Big Momentum") is behavioral momentum that operates on a large scale. The concept originally applied to sporting events in the 1960s in the United States, as momentum appeared to have an effect on a team's performance. [1] Successful teams were said to have "The Big Mo" on their side. This has since extended situations in which momentum is a driving factor, such as during political campaigns, social upheavals, economic cycles, and financial bubbles. [2]
The term was used by George H. W. Bush during his quest for the Republican nomination to run for President in 1980. After he won the Iowa caucuses, and was facing further contests, Bush Senior said: "Now they will be after me, howling and yowling at my heels. What we will have is momentum. We will look forward to Big Mo being on our side, as they say in athletics." [3]
Eventually, Bush lost to Ronald Reagan who went on to become the 40th President of the United States, with Bush as his Vice President.
Research conducted in 2005, by Christopher Hull at Georgetown University, US, suggested that from 1980 to 2000, "Big Mo" (large scale momentum) had amplified key events in US presidential races. [4]
In 2007, three researchers from the London Business School, Elroy Dimson, Paul Marsh and Mike Staunton, observed in their paper "108 Years of Momentum Profits" that "momentum appears to have an inordinate and unexplained impact on the behaviour of investment markets that contradicts the efficient market theory". One of the researchers, Dr Paul Marsh said, "We remain puzzled (by these findings) and we are not the only ones; most academics are vaguely embarrassed by this." [5]
In the lead-up to the British election in May 2010, James Forsyth, the political editor of The Spectator magazine, wrote, "The Big Mo is with the Tories. In a campaign, momentum matters. It is, for good or ill, the prism through which the media report things." [6]
In 2010, an analysis conducted by Mark Roeder, a former executive at the Swiss-based UBS Bank, suggested that Big Mo "played a pivotal role" in the 2007–2008 financial crisis. Roeder suggested that,
recent technological advances, such as computer-driven trading programs, together with the increasingly interconnected nature of markets, has magnified the momentum effect. This effect is not limited to the financial markets. It can be felt across other aspects of society, particularly in politics, business, technology and the media where Big Mo now operates on a massive scale. [7]
In January 2011, a report in The Economist magazine, titled "The Big Mo", said,
The momentum effect drives a juggernaut through one of the tenets of finance theory, the efficient-market hypothesis... Even the high priests of efficient-market theory have acknowledged [its impact]. Well-paid fund managers have spent decades trying to find ways to beat the market. But you have to wonder why they bother devoting so much money and effort to researching the fortunes of individual companies when the momentum approach appears to be easy to exploit and has been around for a long time... The momentum effect raises a further important issue. If markets are rational, as the efficient-market hypothesis assumed, then they will allocate capital to its most productive uses. But the momentum effect suggests that an irrationality might be at work; investors could be buying shares (and commodities) just because they have risen in price. That would help explain why bubbles are created and why professional investors ended up allocating capital to dotcom companies with no earnings and business plans written on the back of a cigarette packet. Momentum can carry whole economies off track. [8]
The mechanism by which momentum influences human behaviour on a large scale is not known, but a number of theories exist. In 1982, a research team led by John Nevin, Professor Emeritus of Psychology at the University of New Hampshire, US, together with Charlotte Mandel and Jean Atak, wrote a paper called "The Analysis of Behavioural Momentum", in which they explored why certain behaviours can become persistent over time. The team proposed that people's tendency to continue to behave in a certain way, and resist change, is dependent on the type of reinforcement they receive. The team developed a method for calculating the impact of behavioural momentum, based on the Newtonian formula: ΔV = f / m, in which ΔV is the change in velocity or, in behavioural terms, response rate; Velocity (V) refers to the response rate; mass (m) refers to the response strength, and force (f) refers to the change in the contingencies for the behaviour (i.e., environment change). The work of Nevin, Mandel and Atak has been influential in the development of social and health-care policies, such as drug rehabilitation programs, where behavioural persistence (momentum) and relapse are critical issues. [9]
More controversial theories about behavioural momentum derive from quantum physics and quantum field theory. In her book The Field, author Lyn McTaggart cites experiments that show that in certain group environments that, "each member of the group becomes less highly-tuned to their own separate information and more receptive to that of other group members. In effect, they pick up someone else's information from the 'field' as if it were their own". She says this phenomenon is akin to what sports teams experience when they "enter the zone" and are influenced by momentum. [10]
In finance, technical analysis is an analysis methodology for analysing and forecasting the direction of prices through the study of past market data, primarily price and volume. As a type of active management, it stands in contradiction to much of modern portfolio theory. The efficacy of technical analysis is disputed by the efficient-market hypothesis, which states that stock market prices are essentially unpredictable, and research on whether technical analysis offers any benefit has produced mixed results. It is distinguished from fundamental analysis, which considers a company's financial statements, health, and the overall state of the market and economy.
The efficient-market hypothesis (EMH) is a hypothesis in financial economics that states that asset prices reflect all available information. A direct implication is that it is impossible to "beat the market" consistently on a risk-adjusted basis since market prices should only react to new information.
The bandwagon effect is a psychological phenomenon where people adopt certain behaviors, styles, or attitudes simply because others are doing so. More specifically, it is a cognitive bias by which public opinion or behaviours can alter due to particular actions and beliefs rallying amongst the public. It is a psychological phenomenon whereby the rate of uptake of beliefs, ideas, fads and trends increases with respect to the proportion of others who have already done so. As more people come to believe in something, others also "hop on the bandwagon" regardless of the underlying evidence.
Behavioral economics is the study of the psychological, cognitive, emotional, cultural and social factors involved in the decisions of individuals or institutions, and how these decisions deviate from those implied by classical economic theory.
An operant conditioning chamber is a laboratory apparatus used to study animal behavior. The operant conditioning chamber was created by B. F. Skinner while he was a graduate student at Harvard University. The chamber can be used to study both operant conditioning and classical conditioning.
The experimental analysis of behavior is a science that studies the behavior of individuals across a variety of species. A key early scientist was B. F. Skinner who discovered operant behavior, reinforcers, secondary reinforcers, contingencies of reinforcement, stimulus control, shaping, intermittent schedules, discrimination, and generalization. A central method was the examination of functional relations between environment and behavior, as opposed to hypothetico-deductive learning theory that had grown up in the comparative psychology of the 1920–1950 period. Skinner's approach was characterized by observation of measurable behavior which could be predicted and controlled. It owed its early success to the effectiveness of Skinner's procedures of operant conditioning, both in the laboratory and in behavior therapy.
Managerial economics is a branch of economics involving the application of economic methods in the organizational decision-making process. Economics is the study of the production, distribution, and consumption of goods and services. Managerial economics involves the use of economic theories and principles to make decisions regarding the allocation of scarce resources. It guides managers in making decisions relating to the company's customers, competitors, suppliers, and internal operations.
Behaviorism is a systematic approach to understand the behavior of humans and other animals. It assumes that behavior is either a reflex elicited by the pairing of certain antecedent stimuli in the environment, or a consequence of that individual's history, including especially reinforcement and punishment contingencies, together with the individual's current motivational state and controlling stimuli. Although behaviorists generally accept the important role of heredity in determining behavior, they focus primarily on environmental events. The cognitive revolution of the late 20th century largely replaced behaviorism as an explanatory theory with cognitive psychology, which unlike behaviorism views internal mental states as explanations for observable behavior.
Experimental economics is the application of experimental methods to study economic questions. Data collected in experiments are used to estimate effect size, test the validity of economic theories, and illuminate market mechanisms. Economic experiments usually use cash to motivate subjects, in order to mimic real-world incentives. Experiments are used to help understand how and why markets and other exchange systems function as they do. Experimental economics have also expanded to understand institutions and the law.
Behaviour therapy or behavioural psychotherapy is a broad term referring to clinical psychotherapy that uses techniques derived from behaviourism and/or cognitive psychology. It looks at specific, learned behaviours and how the environment, or other people's mental states, influences those behaviours, and consists of techniques based on behaviorism's theory of learning: respondent or operant conditioning. Behaviourists who practice these techniques are either behaviour analysts or cognitive-behavioural therapists. They tend to look for treatment outcomes that are objectively measurable. Behaviour therapy does not involve one specific method, but it has a wide range of techniques that can be used to treat a person's psychological problems.
Momentum investing is a system of buying stocks or other securities that have had high returns over the past three to twelve months, and selling those that have had poor returns over the same period.
John August List is an American economist known for his work in establishing field experiments as a tool in empirical economic analysis. Since 2016, he has served as the Kenneth C. Griffin Distinguished Service Professor of Economics at the University of Chicago, where he was Chairman of the Department of Economics from 2012 to 2018. Since 2016, he has also served as Visiting Robert F. Hartsook Chair in Fundraising at the Lilly Family School of Philanthropy at Indiana University. In 2011, List was elected to the American Academy of Arts and Sciences, and in 2011, he was elected a Fellow of the Econometric Society.
Behavioral momentum is a theory in quantitative analysis of behavior and is a behavioral metaphor based on physical momentum. It describes the general relation between resistance to change and the rate of reinforcement obtained in a given situation.
Quantitative analysis of behavior is the application of mathematical models--conceptualized from the robust corpus of environment-behavior-consequence interactions in published behavioral science--to the experimental analysis of behavior. The aim is to describe and/or predict relations between varying levels of independent environmental variables and dependent behavioral variables. The parameters in the models hopefully have theoretical meaning beyond their use in fitting models to data. The field was founded by Richard Herrnstein (1961) when he introduced the matching law to quantify the behavior of organisms working on concurrent schedules of reinforcement.
John Anthony Nevin was an American psychologist who was a professor of psychology at the University of New Hampshire.
In finance, momentum is the empirically observed tendency for rising asset prices or securities return to rise further, and falling prices to keep falling. For instance, it was shown that stocks with strong past performance continue to outperform stocks with poor past performance in the next period with an average excess return of about 1% per month. Momentum signals have been used by financial analysts in their buy and sell recommendations.
Clinical behavior analysis is the clinical application of behavior analysis (ABA). CBA represents a movement in behavior therapy away from methodological behaviorism and back toward radical behaviorism and the use of functional analytic models of verbal behavior—particularly, relational frame theory (RFT).
Nudge theory is a concept in behavioral economics, decision making, behavioral policy, social psychology, consumer behavior, and related behavioral sciences that proposes adaptive designs of the decision environment as ways to influence the behavior and decision-making of groups or individuals. Nudging contrasts with other ways to achieve compliance, such as education, legislation or enforcement.
Mark Lewis Mendick Roeder is an Australian-British author and cultural commentator. He has written The Big Mo (book): Why Momentum Rules The World (2011), and Unnatural Selection: Why The Geeks Will Inherit The Earth (2013). Roeder's books and articles explore social phenomena and the impact of technology on human behaviour.
The Big Mo: Why Momentum Rules Our World is a book by Mark Roeder, first published by HarperCollins in 2011 It explores the phenomenon of large-scale momentum and how it impacts society.