Portfolio Rebalancing Channel and the Effects of Large-Scale Stock and Bond Purchases
Bibliographic record
Abstract
We quantify the effects of large-scale stock purchases by a central bank and compare these to bond purchases, using an estimated dynamic stochastic general equilibrium macro-finance model with nominal and real rigidities and portfolio rebalancing effects. The latter arise from imperfect substitutability between stocks and short- and long-term government bonds in mutual funds’ portfolios. Since households’ consumption-savings decisions are tied to expected portfolio returns, the required returns on all three assets affect overall demand in the economy. The model shows that the central bank’s equity purchases would lower the risk and term premiums on stocks and long-term bonds, respectively, and thereby stimulate economic activity. Since stocks comprise a larger share in asset portfolios and are less substitutable for short-term securities than long-term bonds are, the effects of stock purchases on aggregate demand are larger than those of similar-sized bond purchases.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.003 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".