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Week 3

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von Linus K.

The Hawthorn experiments (In detail)

1: Illumination tests, 1924-1927

Ambiguous findings of effects of task lighting on productivity

-> The first and most cited experiments were the three “illuminations experiments”. They found no relation between lighting and production. (The dv was the number of telephone relays that workers (in this case only women) assembled.


2: Relay tests, 1927-1929

Experimental alteration of bonus arrangements, rest periods, hours of work in a self-selected team

Output rose with each treatment, giving rise to what has come to be called the “Hawthorne effect”

Impact of pfp: findings indicated a large effect – but scholars denied that conclusion

-> In the first ‘Relay assembly test room’ five women were selected to assemble telephone relays under the surveillance of researchers. They manipulated work pauses and the duration of work in an uncontrolled and scientifically unsound manner. They dismissed and replaced operators (Mayo said in a letter that one operator was dismissed because she had gone ‘Bolshevik’), there was no control group.

In a second relay assembly room test they looked a the impact of payment on performance. Finding indicated a large size effect in this case – however the scholars involved, especially Roethlisberger and Dickson denied that conclusion and attributed the measured payment-output relation to their assumption that the operators just wanted to challenge a piecework record of the operators observed in the first relay assembly test room.

Nest researchers analysed the ‘Mica splitting test room’ data, to measure the effect of rest pauses and extra hours on performance. Again Roethlisberger and Dickson drew arguably the wrong conclusions and identified an apparently steady rise in performance and said this was due to high morale


3: Bank wiring room experiments

Observational studies revealed output restriction in certain circumstances (i.e., productivity decreased)

Interviews on attitudes to work revealed ‘cliques’ enforcing output norms (reducing both under- and over-producing)

-> the ‘Bank Wiring room’ where (make) operators were observed in order to see if there was a form of tacit collusion among the workers not to work too slowly or too fast.


4. Large scale interview programme

Researchers inclined to psychological explanations to explain performance effects (workers actually considered pay to be the most important).

-> From 1928 a large-scale interview programme was carried out (over 21K workers). By this time the researchers were inclined towards psychological explanations to explain performance effects. They drew attention to the importance of social aspects of work organisation. However, the workers interviewed actually considered pay to be the most important.

Tournament theory (Lazear & Rosen, 1981)

Tournaments as contests in which actors compete for a prize that is awarded based on relative rank (rather than absolute levels of output).


Designed to motivate effort through the competition to win the prize (e.g. promotion)


The prize is optimal when it maximises the productive output of the tournament, including all participants.


If the prize spread is too small, contestants are not incentivised to compete (so total productive output of the tournament drops).


The theory rests on the (economic) assumptions of rational actors, who seek to maximise individual utility.


“the salary of the vice president acts not so much as motivation for the vice president as it does as motivation for the assistant vice presidents” (Lazear, 1998, p.226)


Tournaments, or rank order tournaments, as an efficient way to pay employees was a theory proposed by Lazear & Rosen. It looks at the impact that large pay differentials have on employee behaviour.

The basic idea is that creating a tournament structure for pay can be a very effective way to motivate effort, as it encourages all employees to work hard to win the prize.

This is in contrast to standard economic theory which would assume that no one can be paid more than the value of their marginal productivity.

In contrast in a tournament it can be efficient to pay people at the top more than the value of what they add, because it incentivises those beneath them to compete for the prize.

Tournaments with very big differentials between grades is a pronounced feature of executive pay.

Rank order tournaments can be superior to PfP compensation mechanisms because they motivate a broader base of employees who strive for promotion rather than focussing on a single individual.

Tournament results are determined by outcomes rather than processes, which is why they reduce monitoring costs. Thus tournament structures are more appropriate when it is hard or expensive to measure individual performance accurately, but easier to measure rank.

BUT: Tournaments seem less useful when cooperation is needed for interdependent work situations. It may also be less well suited to motivate effort over the long haul.



Goal setting theory (Latham & Locke, 1990/2019)

The most effective goals were:

Specific (“Do your best” too vague)

Difficult (but not impossible)


Performance must be controllable, and the goal not impossible.


Moderators:

Feedback: helps to track progress

Goal commitment: acceptance

Skill: can’t attain goals if you don’t know how


Key insight: Goals improve performance – even in the absence of monetary incentives


Subtext:

Latham and Locke (2018) describe some of Latham’s early research involving tree harvesters. In a field experiment they randomly assigned pulpwood crews (who were harvesting trees) to two different conditions:

In one condition they were told to “do their best”.

In the other condition they were assigned a specific, high productivity goal.

In both case they were paid on the basis of a piece rate basis.

Results: From the first week, and throughout the three months of the experiment, those in the “goal condition” outperformed those in the control treatment. “The goals provided the crews with a purpose, a sense of challenge, and feelings of accomplishment for otherwise tedious work.” In addition to the improvements in performance, attendance also increased.

The management of the company where this research was carried out, expressed surprise that something as simple as setting goals would have such an important effect, and asked doesn’t everyone set goals? Latham replies that yes, but normally they are much too general or vague and so have little effect on behaviour.

In subsequent work they found that crews that participated in setting performance goals had the highest productivity.

Further research found that goals improve performance even in the absence of monetary incentives.

Participative v assigned goals

The evidence complex, but they found that as long as the rationale or logic for the goal was provided, and that the goal was not assigned in a curt manner that an assigned goal was as effective as a participatively set goal.

SMART

This comes from a 1981 paper by Doran:

Specific, measurable, assignable, realistic, time related.

Other versions have substituted achievable or attainable, and relevant and time bound. Note L&L specifically say that goals must be difficult.

BUT: Do your best may be better than a specific but mis specified goal.



Author

Linus K.

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