Apakah Pelonggaran Kuantitatif? Bagaimana Ia Berfungsi dan Mempengaruhi Inflasi

Pelonggaran kuantitatif (QE) ialah alat dasar monetari yang digunakan oleh bank pusat untuk merangsang ekonomi dengan membeli sejumlah besar aset kewangan. Ia boleh menurunkan kadar faedah jangka panjang dan menyokong pinjaman apabila pemotongan kadar konvensional tidak lagi mencukupi. Tetapi bagaimana QE berfungsi, dan adakah ia hanya bermaksud mencetak lebih banyak wang?

Apakah Pelonggaran Kuantitatif (QE)?

Pelonggaran kuantitatif (QE) ialah dasar monetari di mana bank pusat membeli sejumlah besar bon kerajaan dan sekuriti kewangan lain untuk mengurangkan kos pinjaman jangka panjang dan menyokong aktiviti ekonomi.

Di Amerika Syarikat, Rizab Persekutuan biasanya membeli sekuriti Perbendaharaan dan sekuriti bersandarkan gadai janji agensi (MBS). Pembelian ini meningkatkan pegangan aset Fed, menambah rizab kepada sistem perbankan dan membantu menjadikan keadaan kewangan lebih baik untuk pinjaman dan pelaburan.

QE berbeza daripada pemotongan kadar faedah konvensional. Apabila Rizab Persekutuan menurunkan kadar faedah penanda arasnya, ia terutamanya mempengaruhi kos pinjaman jangka pendek. QE berfungsi melalui pasaran kewangan, bertujuan untuk mengurangkan hasil jangka panjang yang mempengaruhi gadai janji, pembiayaan perniagaan dan kos pinjaman lain.

Matlamatnya bukan sekadar untuk meningkatkan jumlah wang dalam sistem kewangan. Ia adalah untuk menggalakkan perbelanjaan dan pelaburan, menyokong pekerjaan dan membantu menstabilkan ekonomi semasa tempoh kelemahan yang teruk.

Bagaimanakah Pelonggaran Kuantitatif Berfungsi?

QE bermula apabila bank pusat membeli sekuriti kewangan daripada pelabur melalui sistem kewangan. Transaksi ini meningkatkan permintaan untuk aset yang dibeli dan mewujudkan rizab bank tambahan.

Oleh kerana harga dan hasil bon bergerak dalam arah yang bertentangan, peningkatan permintaan boleh mendorong harga bon lebih tinggi dan hasil lebih rendah. Hasil yang lebih rendah kemudiannya boleh mempengaruhi kadar pinjaman lain di seluruh ekonomi.

Adakah Pelonggaran Kuantitatif Sama seperti Mencetak Wang?

Tidak juga. QE mencipta wang bank pusat secara elektronik dan bukannya memerlukan pencetakan wang kertas fizikal.

Contohnya, katakan Rizab Persekutuan membeli sekuriti Perbendaharaan bernilai $100 bilion. Ia membayar dengan mengkreditkan baki rizab dalam sistem perbankan. Jika sekuriti dibeli daripada pelabur bukan bank, pelabur tersebut biasanya menerima deposit bank, manakala banknya menerima rizab tambahan.

Rizab Persekutuan kini memiliki sekuriti tersebut, dan sistem perbankan memegang lebih banyak rizab. Walau bagaimanapun, ini tidak bermakna $100 bilion telah diserahkan terus kepada pengguna atau perniagaan.

Bank tidak secara automatik meningkatkan pinjaman hanya kerana mereka mempunyai lebih banyak rizab. Pinjaman juga bergantung pada permintaan peminjam, kelayakan kredit, keperluan modal dan keadaan ekonomi yang lebih luas.

Perbezaan utama: QE menghasilkan wang dalam sistem kewangan, tetapi berapa banyak perbelanjaan tambahan dan aktiviti ekonomi yang berlaku bergantung pada bagaimana institusi kewangan, pelabur dan peminjam bertindak balas.

Bagaimanakah QE Mempengaruhi Kadar Faedah dan Kos Pinjaman?

QE mainly influences longer-term interest rates by changing the supply of bonds available to private investors and increasing demand for those securities.

Consider a 10-year Treasury bond. When the Fed buys large quantities of similar securities, their market prices may rise and their yields fall. Lower Treasury yields can help reduce borrowing costs across other markets.

This can affect the economy in several ways:

• Mortgages: Lower long-term yields and purchases of mortgage-backed securities can help reduce mortgage rates.
• Business loans: Lower financing costs can encourage companies to invest and expand.
• Consumer spending: Cheaper borrowing and stronger asset prices may support household spending.

However, these effects are not guaranteed. Mortgage rates and business lending costs also depend on credit risks, lender margins, and market conditions. QE can lower borrowing costs without necessarily producing a strong increase in lending.

When Is Quantitative Easing Used?

Central banks generally turn to quantitative easing during severe economic downturns or financial market disruptions, particularly when short-term interest rates are already near zero.

Under normal conditions, cutting interest rates is usually a central bank's first response to slowing economic growth. But when rates are already extremely low, further cuts have limited room to provide additional stimulus.

QE offers another way to ease financial conditions by targeting longer-term interest rates and supporting the functioning of important bond markets.

Real-World Examples of Quantitative Easing

2008 Global Financial Crisis: Following the financial crisis, the Federal Reserve began large-scale asset purchases in November 2008. During its first round of QE, it eventually purchased $1.25 trillion in agency mortgage-backed securities, $300 billion in longer-term Treasury securities, and $175 billion in agency debt. These purchases aimed to support credit markets and lower longer-term borrowing costs.

2020 COVID-19 Pandemic: As the pandemic disrupted financial markets and economic activity, the Fed again launched large-scale purchases of Treasury securities and agency mortgage-backed securities. The immediate priority was to restore market functioning and maintain the flow of credit. The purchases also helped support accommodative financial conditions during the economic downturn.

Both examples show that QE is generally used when conventional monetary policy is insufficient or financial markets face extraordinary stress. Its effectiveness depends on the economic circumstances and how strongly lower borrowing costs translate into additional spending and investment.

For historical details, see the Federal Reserve Bank of New York's asset purchase records and the Congressional Budget Office's explanation of quantitative easing.

Does Quantitative Easing Cause Inflation?

Quantitative easing can increase inflation, but it does not automatically cause consumer prices to rise. Its impact depends on whether easier financial conditions translate into stronger spending and demand for goods and services.

When QE lowers borrowing costs, households may spend more and businesses may increase investment. If demand grows faster than the economy's ability to produce goods and services, prices can rise.

However, the relationship is not immediate or predictable. Inflation also depends on supply constraints, wages, government spending, energy prices, and inflation expectations.

Why Doesn't QE Always Lead to Higher Inflation?

The main reason is that creating bank reserves does not guarantee an equivalent increase in spending.

During a recession, businesses may avoid borrowing because they expect weak sales. Households may prioritize saving or repaying debt, even when interest rates are low.

For example, the Fed's QE programs after the 2008 financial crisis greatly expanded its balance sheet, yet U.S. inflation generally remained subdued for much of the following decade.

By contrast, inflation rose sharply after the pandemic, when monetary stimulus coincided with substantial fiscal support, supply-chain disruptions, and recovering consumer demand. QE contributed to accommodative financial conditions, but it was not the sole cause of rising prices.

The distinction is between creating money and generating spending. QE can support demand, but inflation depends on how that demand compares with available supply.

What Are the Benefits and Risks of Quantitative Easing?

The main benefit of QE is that it provides additional economic support when conventional interest rate cuts have limited room to work.

By reducing longer-term borrowing costs and improving financial market conditions, QE can help stabilize credit markets, encourage investment, and reduce the risk of a deeper recession.

However, its benefits are uneven. Financial markets may respond quickly to asset purchases, while improvements in employment, business investment, and household income can take much longer.

How Does QE Affect Stocks, Bonds, and Housing Prices?

QE can influence asset prices through lower bond yields, changes in investor demand, and expectations about future economic growth.

• Stocks: Lower bond yields can make equities more attractive relative to fixed-income investments. Lower financing costs may also support company valuations and earnings expectations.
• Bonds: Central bank purchases typically increase demand for targeted bonds, pushing their prices higher and yields lower.
• Housing: Lower mortgage rates can improve affordability for some buyers and increase housing demand, potentially putting upward pressure on home prices.

These effects are not guaranteed. Weak corporate earnings, high credit risks, or deteriorating economic conditions can outweigh the support QE provides.

Importantly, rising asset prices are not the same as consumer price inflation. QE may boost stock or housing valuations without producing a comparable increase in everyday prices.

What Are the Main Risks and Limitations of QE?

QE also creates several challenges for central banks and the broader economy:

• Wealth inequality: Rising stock and property prices may disproportionately benefit households that already own significant financial assets.
• Financial risk-taking: Persistently low yields can encourage investors to pursue riskier investments in search of higher returns.
• Limited economic impact: QE cannot directly fix weak consumer confidence, supply shortages, or structural problems that discourage business investment.
• Policy withdrawal: Reducing monetary support can be difficult if financial markets have become accustomed to low yields and abundant liquidity.

These limitations explain why QE is generally considered a supplementary monetary policy tool rather than a permanent solution to economic weakness.

Quantitative Easing vs. Quantitative Tightening

Quantitative easing (QE) expands a central bank's securities holdings to ease financial conditions, while quantitative tightening (QT) reduces those holdings to withdraw monetary accommodation.

QT usually involves allowing bonds to mature without fully reinvesting the proceeds, although central banks can also sell securities directly.

QE and QT are separate from conventional interest rate decisions. A central bank can adjust its benchmark rate while also managing the size of its balance sheet.

For example, the Federal Reserve began QT in June 2022 and ended that balance sheet runoff on December 1, 2025. Subsequent purchases aimed at maintaining adequate bank reserves are not necessarily QE, because their purpose is different from providing economic stimulus.

For further details, see the Federal Reserve's balance sheet normalization timeline.

Conclusion

Pelonggaran kuantitatif membantu bank pusat menyokong aktiviti ekonomi dengan membeli sekuriti dan menurunkan kos pinjaman jangka panjang. Ia boleh menstabilkan pasaran dan menggalakkan pelaburan, tetapi kesannya terhadap inflasi bergantung pada keadaan ekonomi yang lebih luas. Memahami QE di samping pengetatan kuantitatif memberikan gambaran yang lebih jelas tentang bagaimana bank pusat mempengaruhi pasaran kewangan dan ekonomi.