Dependency ratios
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Dependency Ratios PowerPoint PPT Presentation


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FEMALES To the right. MALES To the left. Definition Comparison between the productive (working)and non-productive (non working) population. Often expressed in non-productive per 100 productive. Dependency Ratios. OLD DEPENDANTS ECONOMICALLY ACTIVE YOUNG DEPENDANTS.

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Dependency Ratios

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FEMALES

To the right

MALES

To the left

  • Definition

    • Comparison between the productive (working)and non-productive (non working) population.

    • Often expressed in non-productive per 100 productive.

Dependency Ratios

OLD DEPENDANTS

ECONOMICALLY

ACTIVE

YOUNG

DEPENDANTS


Non-productive population:

  • Refers to the very old (usually >65 years of age) and the very young (usually <15).

  • Considered to be the “non-productive” segments of society because they are not part of the labour force.


Productive population:

  • Those between 15 and 65 years of age.

  • This portion of the population constitutes the labour force.

  • However, it has now been revised to consider lower than 20 years in developed countries (increasing time spent for education).


How is it Calculated?

Ratio of the dependent population (aged 0 to 14 years and 65 years and over) to that of the non-dependent population (working age - 15 to 64 years).

0-14yrs (children) + 65+yrs (Elderly)

15-64yrs (Those of working age)

Worked example: UK 2001 (figures in millions)

11.105 + 9.341

38.342

X100

This means that for every 100 people of working age, there were 53.33 people dependent upon them.

53.33

X100


How population pyramids change with development

Progressive pyramid – Expanding population

Youthful population

Ageing population

Regressive Pyramid


Your task:

This is a timed task. You have 45 minutes to put together a Powerpoint Presentation relating to the problems a high dependency ratio can cause.

The groups are as follows:

Group 1: Too many under 15s (Alex, Ashna & Beam)

Group 2: Too few under 15s (Zain, Mot and WenPor)

Group 3: Too many over 65 (Josh, Dimitri and One)

Group 4: Too many over 65 (Nicole & Beam)

Group 5: Too many under 15 (Sunny and Busara)


Resources

  • Each group will be allocated 2 lap tops

  • You should use Waugh (pages 12 or 14) depending on which presentation you are doing.

  • You should also include pictures, a population pyramid and some research using the internet.

  • Divide the work equally and be productive.


Structure

  • The first slide should state what you are studying / presenting e.g. ‘Too few under 15’

  • Second slide should show a calculation for the dependency ratio of a country with these problems (e.g. Italy for Ageing population i.e. Too many over 65). You should also include a labelled population pyramid which shows the problems (http://www.census.gov/ipc/www/idb/pyramids.html)

  • The next two or three slides should focus on the problems.

  • The last slide should focus on the possible solutions to these problems.


Presentation

  • Once you have finished your presentation, you need to save it to your thumb drive and place on my desk top (Year 10 presentations).

  • I will then pick a group from each category to present their findings to the rest of the groups-So be ready to present and all group members MUST speak

  • After the holidays, I will print the slides so that everyone has a copy of each others work.

    Good luck!


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