When Stock Prices Fall, Antidepressant Prescriptions Rise

Feeling depressed when the stock market is down? You have plenty of company. According to a recent study, when stock prices fall, the number of antidepressant prescriptions rises.

The researchers examined the connection by first creating local stock indexes, combining companies with headquarters in the same state. Academic research has shown that investors tend to own more local stocks in their portfolios, either because of employee-stock-ownership plans or because they have more familiarity with those companies.

The researchers then looked at about 300 metropolitan statistical areas, which are regions encompassing a city with 50,000 people and the surrounding towns, tracking changes in local stock prices and the number of antidepressant prescriptions in each area over a two-year period. They found that when local stock prices dropped about 12.8% over a two-week period, antidepressant prescriptions increased 0.42% on average. A similar relationship was seen in smaller stock-price drops as well. When local stock prices fell by about 6.4%, antidepressant prescriptions increased about 0.21%.

Older and sadder

“Our findings suggest that as the stock market declines, more people experience stress and anxiety, leading to an increase in prescriptions for antidepressants,” says Chang Liu , an assistant professor at Ball State University’s Miller College of Business in Muncie, Ind., and one of the paper’s co-authors. The analysis controlled for other factors that could influence antidepressant usage, like unemployment rates or the season.

In a comparison of age groups, those aged 46 to 55 were the most likely to get antidepressant prescriptions when local stocks dropped.

“People in this age group may be more sensitive to changes in their portfolio compared with a younger cohort, who are further from retirement, and older cohorts who may own less stocks and more bonds since they are nearing retirement,” says Maoyong Fan , a professor at Ball State University and co-author of the study.

Other correlations

When the authors looked at demand for psychotherapy during periods of declining stock prices their findings were similar. When local stock prices dropped by about 12.8% over a two-week period, the number of psychotherapy visits billed to insurance providers increased by about 0.32%. They also found a correlation between local stock returns and certain illnesses associated with depression, such as insomnia, peptic ulcer, abdominal pain, substance abuse and myocardial infarction. But when the authors looked at other insurance claims, like antibiotics prescriptions, they found no relationship with changes in local stock prices.

By contrast, for periods when stocks rise, the authors didn’t see a drop in psychological interventions. They found no statistical relationship between rising local stock prices and the number of antidepressant prescriptions, for example, which the authors believe makes sense.

“Once a patient is prescribed an antidepressant, it’s unlikely that a psychiatrist would stop antidepressant prescriptions immediately,” says Liu.

One practical implication of the study, Liu adds, is that investors should be aware of their emotional state when the market dips before they make investment decisions.

China’s securities regulator is ramping up support for the country’s embattled equities markets, announcing measures to funnel capital into Chinese stocks.

The aim: to draw in more medium to long-term investment from major funds and insurers and steady the equities market.

The latest round of policy boosts comes as Chinese stocks start the year on a soft note, with investors reluctant to add exposure to the market amid lingering economic woes at home and worries about potential tariffs by U.S. President Trump. Sharply higher tariffs on Chinese exports would threaten what has been one of the sole bright spots for the economy over the past year.

Thursday’s announcement builds on a raft of support from regulators and the central bank, as officials vow to get the economy back on track and markets humming again.

State-owned insurers and mutual funds are expected to play a pivotal role in the process of stabilizing the stock market, financial regulators led by the China Securities Regulatory Commission and the Ministry of Finance said at a press briefing.

Insurers will be encouraged to invest 30% of their annual premiums earning from new policies into China’s A-shares market, said Xiao Yuanqi, vice minister at the National Financial Regulatory Administration.

At least 100 billion yuan, equivalent to $13.75 billion, of insurance funds will be invested in stocks in a pilot program in the first six months of the year, the regulators said. Half of that amount is due to be approved before the Lunar New Year holiday starting next week.

China’s central bank chimed in with some support for the stock market too, saying at the press conference that it will continue to lower requirements for companies to get loans for stock buybacks. It will also increase the scale of liquidity tools to support stock buyback “at the proper time.”

That comes after People’s Bank of China in October announced a program aiming to inject around 800 billion yuan into the stock market, including a relending program for financial firms to borrow from the PBOC to acquire shares.

Thursday’s news helped buoy benchmark indexes in mainland China, with insurance stocks leading the gains. The Shanghai Composite Index was up 1.0% at the midday break, extending opening gains. Among insurers, Ping An Insurance advanced 3.1% and China Pacific Insurance added 3.0%.

Kai Wang, Asia equity market strategist at Morningstar, thinks the latest moves could encourage investment in some of China’s bigger listed companies.

“Funds could end up increasing positions towards less volatile, larger domestic companies. This could end up benefiting some of the large-cap names we cover such as [Kweichow] Moutai or high-dividend stocks,” Wang said.

Shares in Moutai, China’s most valuable liquor brand, were last trading flat.

The moves build on past efforts to inject more liquidity into the market and encourage investment flows.

Earlier this month, the country’s securities regulator said it will work with PBOC to enhance the effectiveness of monetary policy tools and strengthen market-stabilization mechanisms. That followed a slew of other measures introduced last year, including the relaxation of investment restrictions to draw in more foreign participation in the A-share market.

So far, the measures have had some positive effects on equities, but analysts say more stimulus is needed to revive investor confidence in the economy.

Prior enthusiasm for support measures has hardly been enduring, with confidence easily shaken by weak economic data or disappointment over a lack of details on stimulus pledges. It remains to be seen how long the latest market cheer will last.

Mainland markets will be closed for the Lunar New Year holiday from Jan. 28 to Feb. 4.

When Stock Prices Fall, Antidepressant Prescriptions Rise

A new study finds that is particularly true for people nearing retirement.

Older and sadder

Other correlations

The latest round of policy boosts comes as stocks start the year on a soft note.