We document widespread use of personal financial advice among retail investors. Individuals seek competent and trusted sources for financial advice among their family and friends. Investors who provide advice to family and friends are positively selected and emphasize the reputational costs of giving risky financial advice. While previous studies have shown that advice shared on social media promotes active trading, we show that personal financial advice encourages investing in funds over single stocks. Our evidence complements the existing literature on financial advice in online social networks by highlighting differences in incentives and outcomes of advice to close personal connections.

How borrowers respond to future changes in the interest rate on their debt matters for the transmission of monetary policy and for household financial stability. Combining bank data, a letter RCT, and a survey, we study this question in the context of the German mortgage market, where since 2022 borrowers have faced high interest rates when their rate fixation period ends. We find that borrower actions substantially reduce the impact of higher rates on monthly payments. Survey responses corroborate high informedness and a strong propensity to prepare for rate changes. The letter intervention does not affect rate beliefs but increases awareness of available options and refinancing among borrowers close to expiration of their rate fixation.

We study how peer beliefs influence household demand for sustainable investments. In collaboration with a large German bank, we combine survey measures of investors' perceptions about their peers, an incentivized framed field experiment, and account-level portfolio data. In the experiment, bank clients allocate €10,000 between conventional and sustainable equity funds. Providing information about peers' return beliefs, perceived societal impact, or intentions to invest sustainably increases allocations to the sustainable fund by €276–€426 relative to a control group. Treatment effects are strongest when peer information is more favorable than investors' prior beliefs, consistent with belief updating. Peer information also raises demand for additional information about sustainable investing. However, we find little evidence that exposure to peer information leads to portfolio reallocation. This divergence shows that peer-based interventions shift decisions in low-friction, high-salience environments but do not translate into portfolio change in the presence of inertia and adjustment frictions.

Price distortions created by so-called "pump-and-dump" schemes are well known, but relatively little is known about the investors in these frauds.By examining 470 "pump-and-dump" schemes using a large data set of trading records for over 110,000 individual investors from a major German bank, we first provide comprehensive evidence on the participation rate, magnitude of the investments, the losses, and the characteristics of the individuals who invest in such schemes.Participation is quite common with nearly 8% of active retail investors participating in at least one "pump-and-dump" losing on average nearly 30%.Next, we identify several distinct types among participating investors, some of which (i.e., day trader) should not be viewed as falling prey to the schemes.Recognizing this heterogeneity is key when designing investor protections because we find investor types respond differently to market manipulation.We also show that portfolio composition and past trading behavior better explain tout participation than demographics.Lastly, we document longer-lasting effects on participating investors that go beyond the immediate financial losses.

We study how investors respond to inflation combining a customized survey experiment with trading data at a time of historically high inflation. Investors' beliefs about the stock return-inflation relation are very heterogeneous in the cross section and on average too optimistic. Moreover, many investors appear unaware of inflation-hedging strategies despite being otherwise well-informed about inflation and asset returns. Consequently, whereas exogenous shifts in inflation expectations do not impact return expectations, information on past returns during periods of high inflation leads to negative updating about the perceived stock-return impact of inflation, which feed into return expectations and subsequent actual trading behavior.

Based on data gathered from 27,000 real-world meetings between financial advisors and clients of a large German bank, we show that advisors offer more self-serving advice to women, while men are more likely to receive sales fee rebates and less likely to be recommended expensive in-house multi-asset (IHMA) funds. Additional client and advisor surveys provide evidence consistent with statistical discrimination based on gender as a proxy for client financial sophistication, with female clients exhibiting lower financial literacy, confidence, and price sensitivity. Moreover, female advisors report less confidence in their own professional skills and engage in less discrimination than male colleagues.

We educate investors about the benefits of dividend reinvestment and costs of misperceiving dividends as free income. The intervention increases planned dividend reinvestment in survey responses. Using trading records, we observe a causal increase in dividend reinvestment in the field of roughly 50 cents for every euro received. This holds relative to investors' prior behavior and various control samples. Investors who learned the most from the intervention update their trading the most. The results suggest the free dividends fallacy is a significant source of dividend demand. Our study demonstrates that simple, targeted, and focused educational interventions can affect investment behavior.

In this paper, we study the interaction between financial advisors and customers with a potential conflict of interest. We show in a simple analytical framework that advisors have an incentive to provide better advice to consumers who appear to be better informed. From this, we derive an identification strategy to infer the quality of advice received from variables observed in a representative survey of German consumers. Our identification strategy makes use of the fact that we observe both a generally observable signal of a customer's financial literacy as well as an objective measure, which is not observed by the advisor. We apply this strategy to three different empirical settings. In each of these settings, we find consistent evidence that consumers with worse signals of financial literacy on average receive worse financial advice. In particular, both women and individuals without tertiary education are negatively affected.

We conduct a field experiment with clients of a German universal bank to explore the impact of peer information on sustainable retail investments. Our results show that infor-mation about peers’ inclination towards sustainable investing raises the amount allocated to stock funds labeled sustainable, when communicated during a buying decision. This effect is primarily driven by participants initially underestimating peers’ propensity to invest sustainably. Further, treated individuals indicate an increased interest in addi-tional information on sustainable investments, primarily on risk and return expectations. However, when analyzing account-level portfolio holding data over time, we detect no spillover effects of peer information on later sustainable investment decisions.

Using a field study at a German brokerage, we investigate advised individual investors' behavior and outcomes after self-selecting into a flat-fee scheme (percentage of portfolio value) for mutual funds. In a difference-in-differences setting, we compare 699 switch-ers to propensity-score-matched advisory clients who remained in the commission-based scheme. Switchers increase their portfolio values, improve portfolio diversification, and in-crease their portfolio performance. They also demand more financial advice and follow more advisor recommendations. We argue that switchers attribute a higher quality to the unchanged advisory services.(c) 2023 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license ( http://creativecommons.org/licenses/by/4.0/ )

We study the redistributive effects of inflation combining administrative bank data with an information provision experiment during an episode of historic inflation.On average, households are well-informed about prevailing inflation and are concerned about its impact on their wealth; yet, while many households know about inflation eroding nominal assets, most are unaware of nominal-debt erosion.Once they receive information on the debt-erosion channel, households update upwards their beliefs about nominal debt and their own real net wealth.These changes in beliefs causally affect actual consumption and hypothetical debt decisions.Our findings suggest that real wealth mediates the sensitivity of consumption to inflation once households are aware of the wealth effects of inflation.

Cryptocurrencies have received growing attention from individuals, the media, and regulators. However, little is known about the investors whom these financial instruments attract. Using administrative data, we describe the investment behavior of individuals who invest in cryptocurrencies with structured retail products. We find that cryptocurrency investors are active traders who are prone to investment biases and hold risky portfolios. Cryptocurrency investors are more likely to invest in stocks with high media sentiment and more likely to employ heuristics from technical analysis. In line with attention effects and anticipatory utility, we find that the average cryptocurrency investor substantially increases account logins and trading activity after his or her first cryptocurrency purchase. Furthermore, cryptocurrency investors tend to tilt their portfolios toward even more risky securities after cryptocurrency adoption. Our results document which investors are more likely to adopt new financial products and help inform regulators about investors’ vulnerability to cryptocurrency investments.

Incentivized experiments in which individuals receive monetary rewards according to the outcomes of their decisions are regarded as the gold standard for preference elicitation in experimental economics. These task-related real payments are considered necessary to reveal subjects’ “true preferences.” Using a systematic, large-sample approach with three subject pools of private investors, professional investors, and students, we test the effect of task-related monetary incentives on risk preferences in four standard experimental tasks. We find no significant differences in behavior between and within subjects in the incentivized and non-incentivized regimes. We discuss implications for academic research and forions in the field.

Previous studies document a relationship between gambling activity at the aggregate level and investments in securities with lottery-like features. We combine data on individual gambling consumption with portfolio holdings and trading records to examine whether gambling and trading act as substitutes or complements. We find that gamblers are more likely than the average investor to hold lottery stocks, but significantly less likely than active traders who do not gamble. Our results suggest that gambling behavior across domains is less relevant compared to other portfolio characteristics that predict investing in high-risk and high-skew securities, and that gambling on and off the stock market act as substitutes to satisfy the same need, e.g., sensation seeking.

Financial literacy affects wealth accumulation, and pension planning plays a key role in this relationship. In a large field experiment, we employ a digital pension aggregation tool to confront a treatment group with a simplified overview of their current pension claims across all pillars of the pension system. We combine survey and administrative bank data to measure the effects on actual saving behavior. Access to the tool decreases pension uncertainty for treated individuals. Average savings increase - especially for the financially less literate. We conclude that simplification of pension information can potentially reduce disparities in pension planning and savings behavior.

This paper studies why investors buy dividend-paying assets and how they time consumption accordingly. We combine administrative bank data linking customers' consumption and income to portfolio data and survey responses on financial behavior. We find that private consumption is excessively sensitive to dividend income. Investors across wealth, income, and age distributions increase spending precisely around days of dividend receipt. Our results are at odds with a number of existing rational and behavioral explanations, such as financial constraints and impulsiveness. Instead, consumption responses reflect "planned" excess sensitivity, driven by investors who select dividend portfolios, anticipate dividend income, and plan consumption accordingly.

Peer effects can lead to better financial outcomes or help propagate financial mistakes across social networks. Using unique data on peer relationships and portfolio composition, we show considerable overlap in investment portfolios when an investor recommends their brokerage to a peer. We argue that this is strong evidence of peer effects and show that peer effects lead to better portfolio quality. Peers become more likely to invest in funds when their recommenders also invest, improving portfolio diversification compared to the average investor and various placebo counterfactuals. Our evidence suggests that social networks can provide good advice in settings where individuals are personally connected.