Parental Investment

Parental investment is the time, energy, and resources a parent allocates to producing and supporting offspring, often at a cost to its own future reproduction. In biology, these investments can include gamete production, gestation, feeding, protection, and care after birth or hatching. The trade-off arises because finite resources invested in one offspring may reduce a parent’s ability to survive, reproduce, or support others, while investment can increase offspring survival and fitness. Studying parental investment helps explain mating systems, sex differences, reproductive strategies, and patterns of cooperation and conflict across animals, providing a framework for interpreting behavior in evolutionary ecology.

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JoVE Business - Macroeconomics

Planned Investment vs. Actual Investment

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2025

Investment includes business spending on capital goods and changes in inventories.Economists distinguish between planned investment and actual investment. Planned investment is what businesses intend to add to capital goods and inventories. Actual investment reflects the investment that businesses actually make.Businesses spend on capital goods such as trucks and computers. While investment in capital like machinery is always a deliberate, planned action, the second component of investment -...

Parental Care

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2026

Many animals exhibit parental care behavior, including feeding, grooming, and protecting young offspring. Parental care is universal in mammals and birds, which often have young that are born relatively helpless. Several species of insects and fish, as well as some amphibians, also care for their young. Birds Parental care can occur even before hatching in birds, when parents sit on their eggs to incubate them. After hatching, the parents provide food for their offspring, and may continue to...

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JoVE Business - Finance
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Effect of Annuity Due on Investments

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2024

An annuity due, a concept that involves making payments at the beginning of each period, such as monthly or yearly, rather than at the end, is a powerful tool in personal finance and investment planning. This strategy allows money to start earning interest right away, leading to faster growth of the investment. Each payment made with an annuity due starts earning interest immediately, compounding the growth of the investment over time. This method is particularly beneficial for retirement...

Parenting Styles

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2025

Diana Baumrind's four parenting styles — authoritarian, authoritative, neglectful, and permissive — each influence children's socio-emotional development differently. Authoritarian Parenting This style is strict and controlling, with little room for open dialogue. Authoritarian parents demand obedience and often enforce rules with minimal warmth. Children raised this way may lack social skills and initiative, usually comparing themselves to others unfavorably. Authoritative Parenting This...

Planned Investment and the Interest Rate

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2025

Interest rates have a big impact on how businesses plan their investments. They show how much it costs to borrow money. When borrowing is cheap, it’s easier for businesses to take on new projects. However, when borrowing costs go up, it becomes harder to make investments that seem worthwhile.Think about a local restaurant owner who wants to open a second location. If interest rates are low, getting a loan feels manageable, and the owner might be excited to grow the business. But if interest...

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