Similar profit margins did not translate into similar financial efficiency for crop farms in two analyses by Purdue University economist Michael Langemeier. Larger farms generated more production per dollar of assets over 2007-2025, yet their stronger average repayment capacity did not prevent shortfalls in some years, including 2025.
The University of Illinois published the related analyses on October 2 and October 30, 2026. Both use FINBIN crop-farm records for 2007-2025, not 2026 operating results. For California readers, an important boundary applies: the analyses do not establish California representation or California-specific benchmarks. Their numerical results should not be treated as standards for California operations.
Langemeier divided farms into four acreage groups: fewer than 500 crop acres, 500 to 1,000, 1,000 to 2,000, and more than 2,000. His comparisons emphasized the smallest and largest groups. Together, the analyses separate three questions: how much operating profit production generates, how efficiently farms use assets, and whether financial capacity covers debt obligations and asset replacement.
Profit margins tell only part of the story
Average operating profit margins clustered near 20% across all four groups. Farms with fewer than 500 crop acres averaged 20.3%, compared with 19.6% for those exceeding 2,000 acres. The two middle groups averaged 20.9% and 20.1%. The smallest-to-largest difference was not statistically significant, a finding that does not establish that their margins were identical.
The operating profit margin calculation adds interest expense to net farm income, subtracts owner withdrawals representing unpaid operator labor, and divides by the value of farm production. It measures profit relative to production value. It does not, by itself, show how much land, machinery or other assets supported that production.
Asset turnover addresses that second question by dividing the value of farm production by average total assets. Average turnover increased with each acreage category: 22.3%, 26.4%, 30.1% and 35.2%. Unlike the profit-margin comparison, the difference between the smallest and largest groups was statistically significant.
Langemeier found that the asset-turnover gap narrowed over time using a simple linear trend. Nevertheless, the largest farms’ average ratio never fell below 20% during the study period. The smallest farms averaged between 16.7% and 19.8% in 2023-2025. He cautioned that asset requirements differ by industry segment, making comparisons within the same segment important.
This distinction helps explain differences in return on assets. That measure multiplies operating profit margin by asset turnover. With similar average margins, Langemeier attributed differences in returns primarily to financial efficiency rather than profit margins. The finding concerns how the groups used assets, not proof that adding acreage would improve an individual farm’s performance.
Replacement capacity varies by year
The companion analysis examined replacement margin coverage, which considers capacity to cover owner withdrawals, term debt payments and asset replacement. A ratio above 1.0 indicates sufficient funds for those demands under the calculation. This adds a different perspective from profitability: a farm’s operating margin alone does not answer whether it can also meet those commitments.
Average replacement margin coverage rose across the acreage groups, from 1.52 for the smallest farms to 1.60, 1.66 and 1.87 for successively larger groups. Langemeier reported that stronger coverage in high-income years gave larger farms more room to purchase assets. But the largest group’s coverage fell below 1.0 in six study years, including 2024 and 2025.
The smallest group had coverage below 1.0 throughout 2013-2019. The coverage gap between the smallest and largest farms narrowed over time, but those averages still describe uneven annual results. Larger farms’ long-term advantage did not mean they consistently generated enough capacity for debt obligations and replacement spending.
Liquidity moves in a different direction
Liquidity followed a different pattern. The current ratio divides current assets, such as cash, receivables and inventories, by current liabilities, including operating credit and loan payments due within a year. The smallest farms averaged 2.18, versus 2.08 for the largest. Unlike the asset-turnover and replacement-coverage gaps, the liquidity gap widened over time.
In 2025, every acreage group except the 500-to-1,000-acre category had a current ratio below 2.0. The analysis therefore places that exception at or above 2.0, without specifying its exact figure. Langemeier describes a ratio above 2.0 as adequate; below 1.0, selling all current assets would not cover current liabilities.
Net-worth growth offered another qualification. The smallest and largest groups averaged annual changes of 9.2% and 10.9%, respectively, with no statistically significant difference. Changes in net worth include retained earnings, capital contributions and changes in asset market values after deferred liabilities, so they are not simply another measure of operating profit. Langemeier identified labor and machinery benchmarks as subjects for future analysis.
