Reading 80
MODULE 80.1: FARMLAND, TIMBERLAND, AND COMMODITIES
Explain features of raw land, timberland, and farmland and their investment characteristics.
Natural resources comprise raw land, land used for growing crops or timber, and commodities. Investors gain exposure either through direct investment or via commingled vehicles such as exchange-traded funds, REITs, limited partnerships, and LLCs. Derivatives — particularly commodity futures and swaps — are also common.
Raw land, farmland, and timberland are all illiquid, with value driven primarily by location. Proximity to transportation and markets, access to water, and soil quality all increase value. While all three can produce lease income and price appreciation, only farmland and timberland generate income from output.
自然資源投資包含三大類：原始土地、農林用地（種植作物或樹木）以及大宗商品。投資方式可採直接投資，亦可透過 ETF、REITs、有限合夥（LP）或 LLC 等集合工具進行；此外也常見以商品期貨、交換等衍生性商品取得暴險。
原始土地、農地與林地均屬低流動性投資，價值主要取決於地點：靠近運輸與市場、水源充足、土壤品質佳的土地價值較高。三者皆可產生租金收入與資本利得，但只有農地與林地能透過產出（作物、木材）創造額外收入。
Investor profile differences: farmland is primarily held by individuals, while institutions are most likely to invest in raw land and timberland. Timberland lots tend to be much larger than farmland, and timberland investing requires specialized expertise. Investors lacking this expertise can access timberland through timberland investment management organizations (TIMOs).
Farmland and timberland have fewer financing alternatives than residential or commercial real estate. Financing typically takes the form of bank loans or direct private debt. Newer farmland REITs now allow retail investors a foothold in this category.
Because commodity prices fluctuate, farmers often take short positions in commodity futures to hedge their expected harvest. Agricultural crops (including trees) consume carbon, making them attractive to investors with an ESG focus on climate change.
投資人結構差異：農地主要由個人持有；原始土地與林地則多由機構投資人持有。林地的單位面積遠大於農地，且需要專業知識，缺乏專業的投資人可透過林地投資管理組織（TIMO）投資。
農地與林地的融資管道較少於住宅與商用不動產，通常以銀行貸款或私募債務為主。較新的農地 REIT 也讓散戶得以進入此類資產。
教授提醒：大多數農作物必須在短期內收成，但木材的砍伐時點具有彈性 —— 可依當前木價與預期生長率決定何時砍伐。價格低時可暫不砍伐讓樹繼續生長，價格高時再砍伐，此即林地獨有的彈性選擇權（flexibility option）。
因商品價格波動，農民常以商品期貨空頭部位對沖預期收成。農作物與樹木皆吸收碳，因此對重視氣候變遷的ESG 投資人具有吸引力。
Describe features of commodities and their investment characteristics.
Commodities fall into three major sectors:
- Metals — base/industrial metals and precious metals
- Agricultural products
- Energy products
Commodity contracts are also classified by grade (quality) and delivery location.
Governments may provide subsidies on food crops for consumers, price supports for farmers, control access to extractable resources, or be directly involved in production. Climate-change regulation may decrease demand for fossil fuels while increasing demand for minerals such as lithium, cobalt, and nickel.
大宗商品分為三大類：
- 金屬類：包含工業金屬（基本金屬）與貴金屬
- 農產品類
- 能源類
商品合約還會依等級（品質）與交割地點進一步分類。
政府常介入商品市場：對消費者提供糧食補貼、對農民提供價格支持、管制可採掘自然資源的取得權，或直接參與生產。氣候變遷相關法規可能降低對化石燃料的需求，但同時提升對鋰、鈷、鎳等礦物的需求。
While direct investment in physical commodities (e.g., grain, gold) is possible, derivatives such as futures are more commonly used to gain exposure. Because commodities are physical goods, they entail storage and transportation costs.
Forms of commodity exposure:
- Futures, forwards, and options on futures — futures trade on exchanges and have no counterparty risk.
- Exchange-traded products (ETPs) — ETFs and ETNs. Suitable for investors limited to buying equity shares; can track commodity prices or indexes.
- Managed futures funds, including commodity trading advisers (CTAs) — actively managed; some focus on a single sector, others diversified. Structures range from limited partnerships (hedge-fund-style fees, restrictions on number/net worth/liquidity of investors) to mutual-fund-style publicly traded shares (lower minimums, greater liquidity for retail). Separately managed accounts (SMAs) serve larger investors needing customized portfolios.
- Specialized funds in specific sectors (oil and gas, grains, precious metals, industrial metals).
雖然可直接投資穀物、黃金等實體商品，但更常見的方式是透過期貨等衍生工具取得暴險。因為商品是實體物品，會產生儲存與運輸成本。
取得商品暴險的工具：
- 期貨、遠期、期貨選擇權：期貨在交易所交易，無交易對手風險。
- 交易所交易產品（ETPs）：包含 ETF 與 ETN，適合僅能買賣股票形式的投資人，可追蹤商品價格或指數。
- 管理期貨基金（含 CTA 商品交易顧問）：採主動管理，部分專注單一行業，部分多元配置。可採有限合夥架構（費用結構類似避險基金，對人數、淨資產、流動性有限制），亦可採共同基金架構公開交易（最低投資額較低、流動性較佳，適合散戶）。分離管理帳戶（SMA）則為大型投資人提供客製化組合。
- 專門基金：聚焦特定行業，如油氣、穀物、貴金屬、工業金屬等。
Commodity Valuation
Wheat today and wheat six months from today are different products. Buying today gives the buyer immediate use of the commodity if needed. Contracting for delivery six months out avoids storage costs (warehousing, insurance, spoilage) and ties up no cash.
Convenience yield is the nonmonetary value of physically holding the commodity over the futures contract's life.
- If convenience yield is low or zero → futures price > spot price → contango. Contango decreases the return of long-only investors.
- If convenience yield is high enough to more than offset storage costs → futures price < spot price → backwardation. Backwardation increases the return of long-only investors.
商品評價：今天的小麥與六個月後的小麥是不同的產品。今天買進可立即使用該商品；簽訂六個月後交割的合約則可避開儲存成本（倉儲、保險、損耗），並避免現金被佔用。
公式：
期貨價格 = 現貨價格 × (1 + 無風險利率) + 儲存成本 − 便利收益
便利收益（convenience yield）是於期貨合約期間實體持有商品所獲得的非貨幣性效用。
- 便利收益低或為零 → 期貨價>現貨價 → contango（正價差），會降低 long-only 投資人的報酬。
- 便利收益足以抵銷儲存成本 → 期貨價<現貨價 → backwardation（逆價差），會提高 long-only 投資人的報酬。
Analyze sources of risk, return, and diversification among natural resource investments.
Spot prices for commodities are a function of supply and demand. Demand depends on the value of the commodity to end users and on global economic conditions. Supply depends on production, storage costs, and existing inventories.
For many commodities, supply is inelastic in the short run due to long lead times to alter production levels (e.g., drilling oil wells, planting crops). Consequently, commodity prices can be volatile when demand changes significantly over the cycle, or when there are supply shocks such as natural disasters.
Production of agricultural commodities is significantly affected by weather and plant disease — leading to high prices when production is low and low prices when production is high. Costs of extracting oil and minerals rise as more expensive methods or remote areas are needed.
To forecast commodity prices, producers analyze economic events, government policy, and supply forecasts. Investors examine inventory levels, production forecasts, government-policy changes, and economic-growth expectations.
商品現貨價格由供需決定。需求受最終使用者的效用與全球景氣影響；供給則取決於產量、儲存成本與既有庫存。
許多商品的短期供給缺乏彈性：因為改變產量需要長前置時間（如鑽井、播種）。因此景氣循環造成的需求波動或天災造成的供給衝擊，都會使商品價格劇烈波動。
農產品產量受天氣與病蟲害影響甚大，產量低時價格高、產量高時價格低；油礦開採則隨著開採方法越昂貴、地點越偏遠而成本上升。
商品價格預測：生產者分析經濟事件、政府政策與未來供給預測；投資人則檢視庫存、產量預測、政策變化與經濟成長預期。
Returns & Diversification
| Asset | Returns | Volatility |
|---|---|---|
| Commodities | Higher than global stocks/bonds | Higher than global stocks/bonds |
| Timberland / Farmland | Higher than global stocks | Lower than global stocks; similar to global bonds |
Speculators can earn high returns over short periods when their expectations about short-term price movements are correct.
Diversification & inflation hedge: historically, correlations of commodity returns with global equity and bond returns have been low. Adding commodities therefore provides diversification benefits. Because commodity prices tend to move with inflation (positive correlation), commodities can act as an inflation hedge:
- During high inflation → commodities outperform stocks and bonds.
- During low inflation → commodities underperform stocks and bonds.
Commodity prices are more sensitive to geopolitical and weather-related risk factors than traditional assets.
歷史報酬與波動：
- 商品：報酬與波動皆高於全球股票與債券。
- 林地／農地：報酬高於全球股票，但波動低於全球股票，與全球債券波動相當。
投機者若能正確預測短期價格走勢，可在短期間賺取高報酬。
分散風險與通膨對沖：商品與全球股、債的歷史相關性低，能提供分散效益。商品價格與通膨呈正相關，故可作為通膨避險工具：
- 高通膨期間：商品跑贏股票與債券。
- 低通膨期間：商品跑輸股票與債券。
商品價格對地緣政治與天氣等風險因子的敏感度高於傳統資產。
- A. There is a flexibility option to increase output when market prices are high.
- B. They both cater to institutional investors.
- C. The investment is relatively illiquid.
- A. Futures prices will be in backwardation.
- B. Futures prices will be in contango.
- C. Long-only investors will generally earn a higher return.
- A. Returns and volatility have been higher for commodities than for stocks or bonds.
- B. Timberland and farmland returns have lower volatility as compared to global stock returns.
- C. Because commodity prices tend to have negative correlation with inflation rates, holding commodities can act as a hedge of inflation risk.
Returns on farmland and timberland are driven by changes in land prices and prices for the underlying output. Risks include low liquidity, variable cash flows that depend on weather, and potential losses from natural disasters. Timberland uniquely offers a harvest-timing flexibility option.
Natural-resource investments include commodities, farmland, and timberland. Exposure to commodity prices is most commonly achieved with derivatives; alternatives include commodity ETFs, managed futures funds, and specialized sector funds.
futures price = spot price + net cost of carry
When the convenience yield is sufficiently high (low), net cost of carry is negative (positive) — known as backwardation (contango). Contango decreases long-only returns; backwardation increases them.
Returns on farmland and timberland include sales of products raised on the land. Timberland returns also reflect land-price changes tied to expected lumber prices and the volume already harvested. Farmland returns depend on land-price changes, farm-commodity prices, and crop quality and quantity.
Commodity returns have low correlation with traditional asset classes — they provide diversification benefits and act as a hedge against inflation.
【LOS 80.a】農地與林地的報酬來自土地價格變動及產出商品價格變動；風險包含低流動性、隨天候變動的現金流，以及天災損失。林地獨有砍伐時點彈性選擇權。
【LOS 80.b】自然資源投資涵蓋商品、農地、林地。商品暴險最常透過衍生性商品取得，亦可透過商品 ETF、管理期貨基金、行業專門基金等。公式：期貨價 = 現貨價 + net cost of carry。便利收益高（低）→ net cost of carry 負（正） → 逆價差（正價差）。Contango 降低 long-only 報酬，Backwardation 提高。
【LOS 80.c】農地報酬來自作物銷售與地價變動，農作物價格、品質、數量皆有影響；林地報酬則來自木材銷售與地價（取決於預期木材價及已砍伐量）。商品報酬與傳統資產相關性低，提供分散效益與通膨避險功能。