MGMT 8009M Week 4 Heuristics Review Example

A Rule That Fit Until the Pipes Aged: A Heuristics Review Testing Anchoring Against Ten Years of a County Public Works Department's Capital Requests, With the Year the Environment Moved

Student Name

Walden University

MGMT 8009M: Organizational Decision Making and Judgment

Instructor Name

Month Day, Year

A Rule That Fit Until the Pipes Aged: A Heuristics Review Testing Anchoring Against Ten Years of a County Public Works Department's Capital Requests, With the Year the Environment Moved

The Laboratory Finding, Held at a Distance

Tversky and Kahneman (1974) showed that people asked to estimate a quantity after seeing an arbitrary number, such as the result of a spun wheel, produce estimates pulled toward that number, adjusting away from it too little. Anchoring and insufficient adjustment has since become one of the most cited findings in judgment research, and it is often invoked to explain why organizational budgets change slowly. Before applying it to the capital budget of Galloway County's public works department, the review asks a prior question. The anchor in the laboratory was arbitrary and irrelevant. A prior year's appropriation is neither: it reflects past negotiation, known costs and the department's actual capacity to spend. Whether anchoring on it is an error depends on whether it still tracks what the department needs.

Incrementalism as the Organizational Form

Wildavsky (1964) described public budgeting as incremental. Agencies treat last year's base as largely settled and concentrate argument on the increment, the amount above or below the base. The base itself is rarely re-examined, because examining everything every year would be too costly in time and conflict. Galloway County's budget instructions match this account closely. Since at least 2016, the instructions to departments have asked for "changes from current appropriation, with justification for each change," and the capital request form has a column for the prior year's figure printed beside the request.

The Evidence

[after]

Need is estimated independently by the county engineer from pavement condition index surveys and the water and sewer pipe inventory, using replacement cost for assets past their rated service life. The estimate was not used in the budget process; it was assembled from survey files for this review.

Table 1

Galloway County Public Works Capital Requests and Condition-Based Need, 2016 to 2025 (Millions of Dollars)

A Rule That Once Fit

Gigerenzer and Gaissmaier (2011) argued that simple heuristics are not merely shortcuts that produce errors; they can be ecologically rational, performing well in environments whose structure they match, sometimes better than complex methods that require more information. A rule that says request roughly last year's amount plus a small increase is a heuristic of this kind. It is cheap, predictable and politically stable, and it avoids an annual fight over the whole capital program. For the first six years of the record, the rule worked. Requests stayed within about 3 percent of the prior appropriation and within about 5 percent of measured need. Anchoring on last year's figure was not a bias in any harmful sense; it was a reasonable rule in a stable environment, and spending effort to rebuild the budget from zero each year would have bought little.

The Year the Environment Moved

From 2022 the picture changes. A large share of the county's water mains and arterial pavement, installed in a burst of construction between 1970 and 1975, crossed the end of their rated service lives at about the same time. Measured need rose from $14.6 million in 2021 to $24.9 million in 2025. Requests kept tracking the prior appropriation, rising about 3 percent a year, and by 2025 the gap between request and need had reached $9.6 million. The heuristic had not changed. Its environment had.

This is where anchoring, in the sense Tversky and Kahneman described, becomes the right description. Once the starting value stopped carrying information about need, adjustment from it remained small. The department's engineers knew, in a general way, that the pipe inventory was aging; condition reports said so. But the budget form asked for changes from base, and a request of $24.9 million against a base of $14.8 million would have been a 68 percent increase, far outside the range the form and the process treated as normal.

Where the Failure Lies

The review does not assign the failure to the budget officers, who did what the instructions asked. It assigns it to the routine. Nothing in the budget process compared requests with independent measures of need, so nothing detected the moment the rule stopped fitting. The anchor was harmless for six years and harmful afterward, and the routine had no way to tell the difference.

Re-Basing on a Schedule

Every fourth year, the department rebuilds its capital base from condition data rather than carrying it forward, presenting the rebuilt figure beside the incremental one. The budget office owns the rebuild, with the county engineer supplying condition estimates. The added cost is estimated at about six staff weeks in each rebuild year. In the three intervening years, a single line on the request form shows the latest condition-based need beside the request, so a divergence becomes visible as soon as it opens. Had the rule been in place, the 2022 rebuild would have shown a gap of about $3 million, early enough to phase replacement over several budgets.

What the Review Concludes About the Heuristic

The anchoring account and the ecological account are both right, for different periods. The useful question is not whether anchoring is a bias but under what conditions an anchor stops carrying information, and whether the organization would notice.

Limits

Galloway County is a composite, and condition-based need is itself an estimate built on rated service lives that real assets often outlast. A different estimate would move the divergence year, not remove it.

References

Gigerenzer, G., & Gaissmaier, W. (2011). Heuristic decision making. Annual Review of Psychology, 62, 451-482. https://doi.org/10.1146/annurev-psych-120709-145346

Tversky, A., & Kahneman, D. (1974). Judgment under uncertainty: Heuristics and biases. Science, 185(4157), 1124-1131. https://doi.org/10.1126/science.185.4157.1124

Wildavsky, A. (1964). The politics of the budgetary process. Little, Brown.