CHAPTER ONE
INTRODUCTION
Economic development of Nigeria has over the period been inconsistent despite its window dressing. Economic growth and development in Nigeria is inevitable for a better and prosperous living. In adequately studying economic growth and development, a lot of predictors or determinants must be studied as well to have a comprehensive grip on the socio economic development of the nation. Two cardinal factors that may influence the socio economic development of any nation, Nigeria inclusive are the birth and death rates. The performance of the economy of any nation to a very large extent hinges on these two factors. Increased or decreased birth or death rates have its implications on the socio economic development of a country. Countries that want to be wealthy must not joke or toil with the study of birth and death rates in relationship to their economy.
BIRTH RATE
The birth rate; in Nigeria was last measured at 41.24 in 2013, according to the World Bank. Crude birth rate indicates the number of live births occurring during the year, per 1,000 populations estimated at midyear or quarterly. Subtracting the death rate from the birth rate provides the rate of natural increase, which is equal to the rate of population change in the absence of migration.
The birth rate (technically, births/population rate) is the total number of live births per 1,000 of a population in a year. The rate of births in a population is calculated in several ways: live births from a universal registration system for births, deaths, and marriages; population counts from a census, and estimation through specialized demographic techniques. The birth rate (along with mortality and migration rate) is used to calculate population and economic growth.In 2012 the average global birth rate was 19.15 births per 1,000 total populations, compared to 20.09 per 1,000 total populations in 2007. The raw birth rate is 4.3 births/second for the world (2014 EST.).
DEATH RATE
Death rate can be said to be the ratio of total deaths to total population in a specified community or area over a specified period of time. The death rate is often expressed as the number of deaths per 1,000 of the population per year.
It can also be said to be a measure of the number of deaths (in general, or due to a specific cause) in a particular population, scaled to the size of that population, per unit of time. Mortality rate is typically expressed in units of deaths per 1,000 individuals per year; thus, a mortality rate of 9.5 (out of 1,000) in a population of 1,000 would mean 9.5 deaths per year in that entire population, or 0.95% out of the total. It is distinct from the so-called “morbidity rate” (a vague term sometimes used to refer to either the prevalence or incidence of a disease), and also from the incidence rate (the number of newly appearing cases of the disease per unit of time).
Ordinarily speaking, we can say that birth rate can be a number that shows how many people died in a particular place or during a particular time or the number of deaths from a specific cause in a particular area during a particular time period.
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