| Authors | Year | Study type | Intent and Techniques |
| [137] | 2011 | HAM proposing research | Presented a methodology (ratio of lifetime income to house price) to compute lifetime income from predicted annual household earnings. |
| [6] | 2018 | HAM proposing research | Implemented the ratio of cost-burdened households for the evaluation of housing affordability. |
| [125] | 2011 | HAM utilizing research | Used the PIR to calculate the housing stress levels. |
| [155] | 2018 | HAM proposing research | Introduced a new normative measure that adjusts for normative variation in housing consumption. |
| [126] | 2012 | HAM utilizing research | Applied the ratio-based measure on the housing market. |
| [35] | 2017 | HAM utilizing research | Utilized ratio measures to calculate rent proportion. |
| [130] | 2005 | HAM developing research | Developed a model-based measure of access to owner occupation and intermediate housing market. |
| [158] | 2004 | HAM utilizing research | Tabulated and mapped the spatial distribution of households spending large portions of their income on rent. |
| [136] | 2001 | HAM utilizing research | Examine the in-house prices and affordability trends using ratio measures. |
| [62] | 2011 | HAM utilizing research | Analyzed developments in house prices using long-term approach based on ratio measures. |
| [129] | 2013 | HAM utilizing research | Used PIR to investigate two living scenarios (basic and comfortable). |
| [32] | 2016 | HAM utilizing research | Employed the ratio of rent to income to analyze the impact of housing affordability on the permanent migration will. |
| [170] | 2009 | HAM developing research | Extended the PIR to consider the whole income and house prices distribution. |
| [45] | 2010 | HAM utilizing research | Calculated expenditure-to-income ratios of average cost of housing for tenants and homeowners. |
| [134] | 2011 | HAM utilizing research | Employed PIR to address the variations in affordability between local housing market areas (HMAs). |
| [172] | 2013 | HAM proposing research | Proposed an index based on ratio measure that is peculiar to Estonian housing market. |
| [128] | 2001 | HAM utilizing research | Compared and contrasted housing affordability by housing prices and income ratios, using standard measurement criteria. |
| [132] | 2012 | HAM developing research | Defined the dynamic upper boundary of PIR via Engel’s coefficient to estimate the housing affordability severity. |
| [65] | 2011 | HAM utilizing research | Determined affordable areas for moderate single income earners and percentage of suburbs affordable to key workers. |
| [61] | 2006 | HAM utilizing research | Utilized (PIR) to gauge housing affordability. |
| [150] | 2014 | HAM utilizing research | Examined housing affordability using price-to-income ratio (PIR). |
| [38] | 2008 | HAM utilizing research | Used the standard “rule of thumb” to examine the incidence of housing stress for renters and owners separately. |
| [135] | 2005 | HAM proposing research | Proposed a tabulation-based measure via ratio measures. |
| [149] | 2004 | HAM utilizing research | Used the PIR to describe changes in the number of low-income households dissipating over 50% of their income on housing. |
| [34] | 2003 | HAM utilizing research | Evaluated the rental experiences of migrant groups using a housing career strategy. |
| [151] | 2010 | HAM utilizing research | Examined the comparative effects of several affordability definitions on the ratio of households in housing stress. |
| [63] | 2008 | HAM developing research | Computed the homeownership affordability rates using ratio-based measures. |
| [133] | 2018 | HAM utilizing research | Used the PIR to investigate the housing sector situation and affordability issues. |
| [33] | 2004 | HAM utilizing research | Utilized the ratio measure to assess housing assistance programs. |
| [156] | 2002 | HAM utilizing research | Analyzed housing affordability using the upper boundaries of both income and rent bands via ratio measures. |
| [79] | 2013 | HAM developing research | Extended housing stress measure proposed by Chaplin and Freeman (1999) to incorporate the 30/40 rule. |
| [152] | 2013 | HAM utilizing research | Identified the time lapse in which low-income households can afford a unit when resold using the ratio measures. |
| [131] | 2018 | HAM proposing research | Presented the interest-to-income ratio (IIR) concept to establish a simple affordability model. |
| [39] | 2014 | HAM proposing research | Proposed the subsidy per housing affordability equivalent (SHARE) ratio as a replacement metric. |
| [28] | 2006 | HAM utilizing research | Examined housing affordability trends across income groups using customized matrices. |
| [36] | 2005 | HAM utilizing research | Evaluated how the availability and supply of low rent housing aid affordability problems via ratio measures. |
| [37] | 2000 | HAM utilizing research | Accessed housing un-affordability using the ratio of rent paid to gross household income. |